This root form (lemma) is used in 3 different forms in the NT: εὐκαίρουν (IIA3··P), εὐκαιρήσῃ (SAA3··S), ηὐκαίρουν (IIA3··P).
It is glossed in 3 different ways: ‘were having_opportunity’, ‘he may have_opportunity’, ‘they were having_opportunity’.
OET MARK 6:31 Greek word=εὐκαίρουν (eukairoun) Morphology=IIA3··P English gloss=‘they were having_opportunity’ SR GNT MARK 6:31 word 33
OET ACTS 17:21 Greek word=ηὐκαίρουν (aʸukairoun) Morphology=IIA3··P English gloss=‘were having_opportunity’ SR GNT ACTS 17:21 word 13
OET 1COR 16:12 Greek word=εὐκαιρήσῃ (eukairaʸsaʸ) Morphology=SAA3··S English gloss=‘he may have_opportunity’ SR GNT 1COR 16:12 word 31