John 6:71

ἔλεγεν δὲ τὸν Ἰούδαν Σίμωνος Ἰσκαριώτου· οὗτος γὰρ ἔμελλεν αὐτὸν παραδιδόναι, εἷς ὢν ἐκ τῶν δώδεκα.

Rough Word-by-word:
he was saying and the Judas of Simon of Iscariot. This man for he was about him to betray, one he being out of the twelve.

Smooth Translation:
And he was saying Judas of Simon of Iscariot. For this man was about to betray him, one being out of the twelve.

ἔλεγεν verb imperfect active indicative 3rd singular from λέγω (I say) "he was saying"

δὲ post positive conjunction "and"

τὸν definite article accusative singular masculine "the"

Ἰούδαν proper noun accusative singular masculine "Judas"

Σίμωνος proper noun genitive singular masculine "Simon"

Ἰσκαριώτου proper noun genitive singular masculine "[of] Iscariot"

οὗτος demonstrative pronoun nominative singular masculine "this [man]"

γὰρ post positive conjunction "for"

ἔμελλεν verb imperfect active indicative 3rd singular from μέλλω (I am about, I am near) "he was being about"

αὐτὸν pronoun accusative singular masculine "him"

παραδιδόναι verb present active infinitive from παραδίδωμι (I give over, I betray) "to betray" (note: this is a μι verb)

εἷς numeral nominative singular masculine "one"

ὢν present active participle nominative singular masculine from εἰμί (I am) "he being"

ἐκ genitive preposition "from, out of"

τῶν definite article genitive plural masculine "the"

δώδεκα numeral genitive plural masculine "twelve"