John 3:1

Ἦν δὲ ἄνθρωπος ἐκ τῶν Φαρισαίων, Νικόδημος ὄνομα αὐτῷ, ἄρχων τῶν Ἰουδαίων

Now there was man from the pharisees, named Nicodemus, a ruler of the Jews


 * δὲ - glossed as and/but. When used to introduce a new thing which may or may not be connected to the previous text. So effectively translated as "now".
 * Ἦν - simply the form of εἰμί.
 * ἐκ τῶν Φαρισαίων - from the pharisees. Note ἐκ takes genitive - from out of the pharisees
 * Νικόδημος ὄνομα αὐτῷ - ὄνομα is neuter nominative sg. αὐτῷ is dative. The name to him (was) Nicodemus.