OET interlinear YHN (JHN) 15:22

uW Translation Notes:

Note 1 topic: grammar-connect-condition-contrary

εἰ μὴ ἦλθον καὶ ἐλάλησα αὐτοῖς

except (Some words not found in SR-GNT: εἰ μή ἦλθον καί ἐλάλησα αὐτοῖς ἁμαρτίαν Οὐκ εἴχοσαν νῦν δέ πρόφασιν οὐκ ἔχουσιν περί τῆς ἁμαρτίας αὐτῶν)

Jesus is making a conditional statement that sounds hypothetical, but he knows that the condition is not true. He knows that he did come and speak to the world. Use a natural form in your language for introducing a condition that the speaker believes is not true. Alternate translation: [If I had not come and spoken to them, but I did]

Note 2 topic: figures-of-speech / metaphor

ἁμαρτίαν οὐκ εἴχοσαν

sin (Some words not found in SR-GNT: εἰ μή ἦλθον καί ἐλάλησα αὐτοῖς ἁμαρτίαν Οὐκ εἴχοσαν νῦν δέ πρόφασιν οὐκ ἔχουσιν περί τῆς ἁμαρτίας αὐτῶν)

Jesus speaks of sin as if it were an object that a person could possess. See how you translated a similar phrase in [9:41](../09/41.md).

Note 3 topic: figures-of-speech / explicit

ἁμαρτίαν & ἁμαρτίας

sin & sin

Jesus uses sin to refer specifically to the sin of rejecting Jesus and his teachings. It does not refer to sin in general, because everyone is guilty of sin. You could include this information if that would be helpful to your readers. Alternate translation: [the sin of rejecting me and my teachings … sin of rejecting me]