John 6:6

τοῦτο δὲ ἔλεγεν πειράζων αὐτόν· αὐτὸς γὰρ ᾔδει τί ἔμελλεν ποιεῖν

Rough Word-by-word:
this but he was saying testing him, he for he already knew what he was about to do.

Smooth Translation:
But he was saying this testing him, for he, himself, already knew what he was about to do.

τοῦτο demonstrative pronoun accusative singular neuter "this"

δὲ post positive conjunction "and, but"

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

πειράζων present active participle nominative singular masculine from πειράζω (I am testing) "testing"

αὐτόν pronoun accusative singular masculine "him"

αὐτὸς pronoun nominative singular masculine "he"

γὰρ post positive conjunction "for"

ᾔδει verb pluperfect active indicative 3rd singular from οῖδα (I know) "he already knew"

τί pronoun nominative singular neuter "what"

ἔμελλεν verb aorist imperfect indicative 3rd singular from μέλλω (I am about) "he was about"

ποιεῖν verb present active infinitive from ποιέω (I do) "to do"