John 6:33

ὁ γὰρ ἄρτος τοῦ θεοῦ ἐστιν ὁ καταβαίνων ἐκ τοῦ οὐρανοῦ καὶ ζωὴν διδοὺς τῷ κόσμῳ.

Rough Word-by-word:
the for bread the of God is the one coming down from the heaven and life giving to the world.

Smooth Translation:
For the bread of God is the one coming down from heaven and giving life to the world.

ὁ definite article nominative singular masculine "the"

γὰρ post positive conjunction "for"

ἄρτος noun nominative singular masculine "bread"

τοῦ definite article genitive singular masculine "the"

θεοῦ proper noun genitive singular masculine "of God"

ἐστιν verb present indicative 3rd singular from εἰμί (I am) "it [he] is"

ὁ definite article nominative singular masculine "the"

καταβαίνων present active participle nominative singular masculine from καταβαίνω (I come down) "one coming down"

ἐκ genitive preposition "from, out of"

τοῦ definite article genitive singular masculine "the"

οὐρανοῦ noun genitive singular masculine "of heaven"

καὶ conjunction "and"

ζωὴν noun accusative singular feminine "life"

διδοὺς present active participle nominative singular masculine from δίδωμι (I give) "giving"

τῷ definite article dative singular masculine "to the"

κόσμῳ noun dative singular masculine "world"