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unfoldingWord Greek Grammar 

Mood infinitive

Glossary

An infinitive is a verbal noun (e.g., to eat, to run, to go). It expresses aspect (simple, continuous, or repeated action) and voice (active, middle, or passive) like other (finite) verbs, but does not indicate person or number. It can take an object, but usually does not explicitly express a subject.

Example

Example V-NM-1 Mark 2:26
οὓς οὐκ ἔξεστιν φαγεῖν εἰ μὴ τοῖς ἱερεῦσιν  
hous ouk exestin phagein ei mē tous hiereis  
which (is) not authorized to eat except the priests  

which is not lawful to eat, except for the priests

Article

Background

Infinitives are nouns formed from a verb. Therefore, they are referred to as Verbal Nouns.

Verbal Characteristics:

  1. The verbal characteristics of Infinitives includes tense (Present, Aorist, and Perfect).

    The tense of an Infinitive does not refer to time, but does refer to Aspect.

    • The Present tense is used to portray continuous or repeated action.
    • The Aorist tense is used to portray simple or undefined action.
    • The Perfect tense is used to portray completed action.
  2. The Verbal characteristics of Infinitives also includes Voice.

    • Active Voice – when the subject does the action of the infinitive.
    • Middle Voice – when the subject does the action on itself or in many cases when the verb is deponent.
    • Passive Voice – when the subject is acted upon by something else. It is the recipient of the action.
  3. The Infinitive can be modified by an adverb. (See the Verbal uses of the Infinitive below)

  4. The Infinitive can take an object. ( See characteristics similar to a noun 3(b) "A direct or indirect object" below)

The Infinitive is indeclinable with the result that the person and number do not change.

Infinitives may have a noun or pronoun in the 3rd person singular accusative form (although it can be in the plural) that acts as the subject of the infinitive. [See Example… V-NM-9a)

The Verbal uses of the infinitive include:

  1. Purpose [See Infinitive of Purpose V-NM-6 ]
  2. Result [See Infinitives of Result V-NM-7]
  3. Cause/Reason [See Infinitives of Cause/Result V-NM-8]
  4. Time (with the aid of a preposition) [See Infinitive of Time V-NM-9]
  1. πρὸ (with the genitive- τοῦ), or πρίν, or πρὶν ἤ - followed by the infinitive - ( gloss - before ) [See πρὸ or πρίν]
  2. ἐν (with the dative – τῷ) followed by the infinitive – (gloss – as, when, while) [See ὲν]
  3. μετὰ (with the accusative – τὀ) followed by the infinitive – (gloss – after) [See μετὰ]
  4. ἕως (with the genitive - τοῦ) followed by the infinitive – (gloss – until) [See ἕως]

Characteristics similar to a noun (Substantive Use):

  1. It can take an article. If the article is present, it will generally be the single neuter article (τὀ).
  2. The article can be in any of the cases. If the infinitive is preceded by a preposition, an article will be present and the case of the article will be determined by the preposition.
  3. As a Substantive, an Infinitive can be used as:
  1. The subject of a sentence, [See Subject]
  2. A direct or indirect object in the sentence, [See Direst or Indirect Object]
  3. An adjective to modify another word, [See Adjective]
  4. In apposition to a noun, or [See Apposition]
  5. It can be qualified by an adjective. [See Qualified]

Infinitives occur 2,290 times in the New Testament of which only a little over 300 times are with the article. The vast majority (well over 1,700 times) are without the article.

Form

The basic form for Infinitives are given in:

Table V-NM-2 Infinitive Morpheme

Table V-NT
Non-Indicative
Infinitive - Morpheme Chart
Present 1st Aorist 2nd Aorist Perfect
Active ειν σαι ειν κεναι
Middle εσθαι σασθαι εσθαι σθαι
Passive εσθαι θηναι ηναι σθαι

Note:
  1. The Active and Middle morphemes are the same for both the Present and 2nd Aorist tense; and
  2. the Perfect Middle and Perfect Passive morphemes are the same.

Table V-NM-3 Formation of the Present and Aorist Infinitive

The Infinitive is formed by adding the Infinitive morpheme to the verbal root.

V-NM-3
Present Infinitive
Present Tense Stem + Infinitive Morpheme
λυ + ειν -> λύειν
to loose

Note: by using the present tense, there is an implication to continually or repeatedly loose (or free).

Table V-NM-4 Paradigm Present and Aorist Infinitive

V-NM-4
Present and Aorist Infinitive Paradigm
Lexical Form Active Middle Passive
Present λύω λύειν λύεσθαι λύεσθαι
1st Aorist λύω λῦσαι λύσασθαι λυθῆναι
2nd Aorist λάμβανω λάβειν λάβεσθαι λημφθῆναι

Note:
The 2 Aorist Active indicative is ἔλαβον; therefore, the Aorist active and middle infinitives are formed off of the verbal root λαβ. The Aorist Passive indicative is ἐλήμφθην, Therefore, one would expect the Aorist Passive Infinitive to be λήμφναι, but in this case it is treated like a 1st Aorist infinitive resulting in λημφ + θηναι -> λημφθήναι.

Table V-NM-5 Future and Perfect Infinitives

The Future Infinitive is formed by adding the Future Tense Formative (σ) to the appropriate Tense stem (Present active or aorist passive without the augment) and then adding the Present Infinitive morpheme (active, middle, or passive) as appropriate.

Table V-NM-5
Formation of Future Infinitive
Tense Stem + Tense
Formative
+ Present
Infinitive
Morpheme
->
λυ + σ + ειν -> λὐσειν
to loose

Technically, the Future Infinitive is formed by the Tense Stem + the Tense Formative (σ) + a connecting vowel (ε) + the Present Infinitive Morpheme which is (εν). The two epsilons then contract to ει resulting in ειν. σ + ε + εν -> σ + εε+ ν -> σ + ει + ν -> σειν. It is a lot easier to just learn the Future Infinitive Morpheme as ειν.

The Perfect Infinitive is formed by Reduplication + the Perfect Active Tense Stem + the Tense Formative + the Infinitive Morpheme. (κεναι). We have already seen the kappa followed by a vowel as a perfect tense indicator.

The 2nd Perfect Infinitive, the reduplication would be just the vowel epsilon (ε) without the consonant. Also, the kappa (κ) is dropped from the Infinitive Morpheme for a 2nd Perfect.

Table V-NM-5a
Formation of Perfect Infinitive
Reduplication + Tense
stem
+ Tense
Formative
+ Infinitive
Morpheme
->
λε + λυ + κε -> ναι -> λελύκεναι
to have loosed

Table V-NM-5b
Perfect and Future Infinitive Paradigm
Lexical
Form
Active Middle
Future λύω λύσεον λύσεσθαι
Perfect λύω λελυκέναι λελύσθαι

Examples:

Verbal uses of the infinitive:

V-NM-6 Infinitive of Purpose

  • An Infinitive of Purpose may or may not be preceded by the definite article.
  • Prepositions indicating purpose such as (ἐις τὸ) or (πρὁς τό) may be followed by an infinitive.
  • An infinitive preceded by an article in the genitive (τοῦ) may be used to indicate purpose.

Example V-NM-6 Infinitive of Purpose with no article

Matthew 2:2
καὶ ἤλθομεν προσκυνῆσαι αὐτῷ
kai ēlthomen proskynēsai autō
and we came to worship Him

and (we) came to worship Him

Example V-NM-6a Infinitive of Purpose preceded by ἔις

Matthew 26:2
Υἱὸς τοῦ Aνθρώπου παραδίδοται εἰς τὸ σταυρωθῆναι
ho Huios tou Anthrōpou paradidotai eis to staurōthēnai
The Son of man is being handed over into the to be crucified

the Son of Man is being handed over to be crucified.

Example V-NM-6b Infinitive of Purpose preceded by πρός

The infinitive of purpose places a stress on the intention of the person carrying out the action. Therefore it is appropriate to insert such key words as “In order to”, or “for the purpose of” in the translation.

Matthew 6:1
τὴν δικαιοσύνην ὑμῶν μὴ ποιεῖν ἔμπροσθεν τῶν ἀνθρώπων πρὸς τὸ θεαθῆναι αὐτοῖς
tēn dikaiosynēn hymōn poiein emprosthen tōn anthrōpōn pros to theathēnai autois
the righteousness of you all not to do before the men in order to the be seen by them

not to do your righteousness before men to be seen by them , or

Do not do your righteousness before men to be seen by them

Example V-NM-6c Infinitive of Purpose preceded by definite article in the Genitive (τοῦ)

Matthew 3:13
παραγίνεται Ἰησοῦς πρὸς τὸν Ἰωάννην τοῦ βαπτισθῆναι ὑπ’ αὐτοῦ
paraginetai ho Iēsous pros ton Iōannēn tou baptisthēnai hyp’ autou
He came the Jesus to   the John to be baptized by him

Jesus comes… to John, to be baptized by him.

V-NM-7 Infinitives of Result

  • Infinitives of Result place an emphasis on the outcome or result of the verb.
  • Infinitives of result may or may not be preceded by the definite article in the genitive case (τοῦ).
  • Infinitives of result may be preceded by a number of prepositions, εἰς τό, or ὥστε, or ώς with the infinitive.
  • It may be noted that each of these forms (with an infinitive) can also be used to express purpose. The interpreter must determine as to if the writer intended to convey a meaning of purpose or of result based on context. It should also be kept in mind that just because the speaker intends for a particular result to occur, it may not actually happen.

Key words that may help in translating are “with the result that”, “so that”, or “so as.”

Example V-NM-7 Infinitive of Result with no article

Rev 5:5
ἐνίκησεν λέων ἐκ τῆς φυλῆς Ἰούδα ἀνοῖξαι τὸ βιβλίον
enikēsen ho leōn ho ek tēs phylēs Iouda anoixai to biblion
he has conquered the lion the (one) out of the tribe of Judah   so as to open the book

Behold, the Lion who is from the tribe of Judah … has conquered in order to open the scroll.

Example V-NM-7a Infinitive of Result with τοῦ

Acts 18:10
οὐδεὶς ἐπιθήσεταί σοι τοῦ κακῶσαί σε διότι λαός ἐστί μοι πολὺς
oudeis epithēsetai soi tou kakōsai se dioti laos esti moi polys
no one will attack you the so as to harm you because people are my many

No one will attack you to harm you, for I have many people.

Example V-NM-7b Infinitive of Result with εἰς τό

Romans 6:12
μὴ βασιλευέτω ἁμαρτία ἐν ὑμῶν σώματι εἰς τὸ ὑπακούειν ταῖς ἐπιθυμίαις αὐτοῦ
basileuetō hamartia en hymōn sōmati eis to hypakouein tais epithymiais autou
not _ let reign the sin in _ your body so that   you obey the desires of it

do not let sin rule in your … body, in order to obey its lusts.

Example V-NM-7c Infinitive of Result with ὥστε

The Infinitive of Result with ὥστε may be actual or intended.

Matthew 13:54
ἐδίδασκεν αὐτοὺς ἐν τῇ συναγωγῇ αὐτῶν ὥστε ἐκπλήσσεσθαι αὐτοὺς
edidasken autous en synagōgē autōn hōste ekplēssesthai autous
He was teaching them in the synagogue of them so as to amaze them

He taught them in their synagogue so as to astonish them

Example V-NM-8 Infinitive of Cause/Reason

The Infinitive of cause, gives the reason for the occurrence of an action.

Infinitives of cause are preceded by the preposition and definite article - διἀ τό. The helping word “because” may aide in translation.

The following example comes from John 2:24. In this passage we are told that Jesus was not entrusting himself to men even those who claimed to believe in Him. Why? What was the reason or cause?

John 2:24
διὰ τὸ αὐτὸν γινώσκειν πάντας
dia to auton ginōskein pantas
because the He to know all (men)

because he knew all {men} literal translation (old)

[Note: αὐτον is acting as the subject of the infinitive.]

V-NM-9 Infinitive of Time

Time (with the aid of a preposition)

The infinitive may be used with a preposition to indicate a time relationship between two events. One event may occur (“before”, or “while”, or “after” , or “until”) another event.

πρὸ (with or without the genitive- τοῦ), or πριν, or πριν ἤ - followed by the infinitive may be translated with the gloss – before.

Example V-NM-9 Infinitive of Time with the aid of the preposition προ or πριν

Jn 13:19
ἀπ’ ἄρτι λέγω ὑμῖν πρὸ τοῦ γενέσθαι
ap’ arti legō hymin pro tou genesthai
from now I am telling you before the to happen

From this moment I tell you, before it happens

Example V-NM-9a Infinitive of Time ἐν

ἐν (with the dative – τῷ) followed by the infinitive may be translated with the gloss – as, when, or while

The following example occurs in Luke 2:6. Mary and Joseph had just arrived in Bethlehem.

Luke 2:6
ἐγένετο δὲ ἐν τῷ εἶναι αὐτοὺς ἐκεῖ ἐπλήσθησαν αἱ ἡμέραι τοῦ τεκεῖν αὐτήν
egeneto de en einai autous ekei eplēsthēsan hai hēmerai tou tekein autēn
it happened and while ... were they there they were completed the days ... to give birth to her

And it happened that, while they were there, the days were fulfilled for her to deliver.

[Note]: In this example note that "αὐτοὺς" is in the accusative case but serves as the subject of the infinitive "εἶναι". As a verbal noun, an infinitive cannot have a subject, but be on the look out for a noun in the accustive that acts as if it were the subject of the infinitive. In this instance the pronoun is in the accusative plural instead of accusative singular.

Example V-NM-9b Infinitive of Time (μετὰ)

μετὰ (with the accusative – τὀ) followed by the infinitive may be translated with the gloss – after.
Mark 14:28
ἀλλὰ μετὰ τὸ ἐγερθῆναί με προάξω ὑμᾶς εἰς τὴν Γαλιλαίαν
alla meta to egerthēnai me proaxō hymas eis tēn Galilaian
but after ... am raised I I will go before you into the Galilee (region)

But after I am raised up, I will go before you into Galilee

Example V-NM-9c Infinitive of Time (ἕως)

ἕως (with the genitive - τοῦ) followed by the infinitive may be translated with the gloss – until
Acts 8:40
Φίλιππος εὐηγγελίζετο τὰς πόλεις πάσας ἕως τοῦ ἐλθεῖν αὐτὸν εἰς Καισάρειαν.
Philippos euēngelizeto tas poleis pasas heōs tou elthein auton eis Kaisareian
Phillip was preaching the good news in the cities all until   to came he into Caesarea

Philip … was proclaiming the gospel to all the cities until he came to Caesarea.

Noun uses of an Infinitive:

As a Substantive, an Infinitive can be used as:

Example V-NM-10 Infinitive as the subject of sentence

An Infinitive can be used as the subject of a sentence. This is especially the case when a complementary verb such as:
  • δεῖ (it is necessary),
  • ἔξεστιν (it is permitted),
  • μἐλλω (I am about),
  • δὐnαμαι (I am able),
  • ἄρχομαι (I am beginning),
  • θἐλω (I wish),
  • κελεὐω (I command), and
  • ὀφείλω (I ought) are followed by an infinitive.
Philippians 1:21
ἐμοὶ γὰρ τὸ ζῆν Χριστὸς καὶ τὸ ἀποθανεῖν κέρδος.
emoi gar to zēn Christos kai to apothanein kerdos
To me for to live (is) Christ and to die (is) gain

For to me to live is Christ, and to die is gain.

Example V-NM-10a Infinitive as a direct or indirect object

An infinitive can be used as a direct or indirect object in a sentence. The infinitive may or may not have the article.
Luke 7:40
εἶπεν πρὸςαὐτόν Σίμων ἔχω σοί τι εἰπεῖν  
eipen pros auton Simōn echō soi ti eipein
He said to him Simon I have to you something to say

He said to him, “Simon, I have something to say to you."

Example V-NM-10b Infinitive modifying another word

An Infinitive may be used as an adjective to modify another word. When used to modify another noun or adjective the infinitive may occur with or without the article. When used as an adjective it is often used epexegetically to explain, clarify, or qualify the preceding noun.

John 4:32
δὲ εἶπεν αὐτοῖς ἐγὼ βρῶσιν ἔχω φαγεῖν ἣν ὑμεῖς οὐκ οἴδατε
ho de eipen autois egō brōsin echō phagein hēn hymeis ouk oidate
He but he said to them I food I have to eat which you not you know

But he said to them, “I have food to eat that you do not know.”

Example V-NM-10c Infinitive of Apposition

An infinitive can be used in apposition to another noun. In this case it defines the noun as opposed to adding an explanatory comment about the noun. The helping word “Namely” could be used to identify the appositional use of a word.

The passage begins with “This is the will of God…

1 Thessalonians 4:3
ἁγιασμὸς ὑμῶν ἀπέχεσθαι ὑμᾶς ἀπὸ τῆς πορνείας
ho hagiasmos hymōn apechesthai hymas apo tēs porneias
the sanctification your to abstain you from the sexual immorality

your sanctification: that you keep yourselves from sexual immorality

Note: In this case , the infinitive phrase , “ἀπέχεσθαι (to be away from, to abstain) from sexual immorality” defines the noun hagiasmos (sanctification).

It could also be translated as “This is your sanctification, namely for you to abstain from sexual immorality.

Example V-NM-10d Infinitives qualified by an adjective

An infinitive can also be qualified by an adjective or an adjectival phrase. In the following example an infinitive (τὸ ἐπιτελέσαι) is modified by an infinitival phrase (ἐκ τοῦ ἔχειν).

2 Corinthians 8:11
οὕτως καὶ τὸ ἐπιτελέσαι ἐκ τοῦ ἔχειν
houtōs kai to epitelesai ek tou echein
thus also the completing it from what (you) have

so also there may be the completion, from what you have