Interlinear view shows the original Hebrew/Greek text with word-by-word translation (KJV).
1
Καὶ and ἐν in/on/among τῷ the/this/who συμπληροῦσθαι fill τὴν the/this/who ἡμέραν day τῆς the/this/who πεντηκοστῆς Pentecost ἦσαν be πάντες all ὁμοῦ together ἐπὶ upon/to/against τὸ the/this/who αὐτό. he/she/it/self
2
καὶ and ἐγένετο be ἄφνω suddenly ἐκ out from τοῦ the/this/who οὐρανοῦ heaven ἦχος sound ὥσπερ just as φερομένης bear/lead πνοῆς