John 5:18

διὰ τοῦτο μᾶλλον ἐζήτουν αὐτὸν οἱ Ἰουδαῖοι ἀποκτεῖναι, ὅτι οὐ μόνον ἔλυεν τὸ σάββατον, ἀλλὰ καὶ πατέρα ἴδιον ἔλεγεν τὸν θεόν, ἴσον ἑαυτὸν ποιῶν τῷ θεῷ.

Rough Word-by-word:
because of this more they were seeking him the Jews to kill, because not only he was breaking the Sabbath, but also father [is] his own he was saying the God, equal himself making to the God.

Smooth Translation:
Because of this the Jews were more seeking to kill him, because not only was he breaking the Sabbath, but also he was saying his own father was God, making himself equal to God.

Notes:
The present active participle ποιῶν in the predicate position is translated as action happening "at the same time" as the main verb of the clause which is ἔλεγεν. As Jesus was calling God His Father He was revealing His own Divinity. They understood this and that was their justification for seeking to kill Him.

διὰ preposition with accusative "because of"

τοῦτο demonstrative pronoun accusative singular neuter "this"

μᾶλλον adverb "more"

ἐζήτουν verb imperfect active indicative 3rd plural from ζητέω (I seek) "they were seeking"

αὐτὸν pronoun accusative singular masculine "him"

οἱ definite article nominative plural masculine "the"

Ἰουδαῖοι adjective nominative plural masculine "Jews"

ἀποκτεῖναι verb aorist active infinitive from ἀποκτείνω (I kill) "to kill"

ὅτι conjunction "that, because"

οὐ adverb of negation "not"

μόνον adverb "only"

ἔλυεν verb imperfect active indicative 3rd singular from λύω (I loose, I break, I destroy) "he was breaking"

τὸ definite article accusative singular neuter "the"

σάββατον noun accusative singular neuter "Sabbath"

ἀλλὰ strong adversative conjunction "but"

καὶ adverbial use of conjunction "also"

πατέρα noun accusative singular masculine "father"

ἴδιον adjective accusative singular masculine "one's own, his own" (note the predicate position - supply the verb)

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

τὸν definite article accusative singular masculine "the"

θεόν proper noun accusative singular masculine "God"

ἴσον adjective accusative singular masculine "equal"

ἑαυτὸν reflexive pronoun accusative singular masculine "himself"

ποιῶν present active participle nominative singular masculine from ποιέω (I do, I make) "making"

τῷ definite article dative singular masculine "[to] the"

θεῷ proper noun dative singular masculine "God"