узнава́ть

fairly common #4212C2

verbimperfective perfective is узна́ть

1.
to recognize
Я его́ не узнаю́ без очков.
I don't recognize him without his glasses.
Of identifying a familiar person or thing.
2.
to find out, to learn
Я узнаю́ об э́том из газе́т.
I find out about it from the newspapers.
Of getting information; often узнавать о чём-либо.
3.
to get to know
Постепе́нно я узнава́л его всё лу́чше.
Gradually I got to know him better and better.
Of gradually becoming familiar with someone or something.

Examples

Ещё слишком рано ду́мать о бра́ке. Мы ещё узнаём друг дру́га.
It's too soon to think about marriage, we're still getting to know each other.
Ты её не узнаёшь?
Don't you recognize her?
Ты меня не узнаёшь?
Don't you recognize me?
Ты меня узнаёшь?
Do you recognize me?
Ты узнаёшь э́ту же́нщину?
Do you recognize that woman?
Вы узнаёте э́ту де́вушку?
Do you recognize that girl?
Вы не узнаёте э́того челове́ка?
Don't you recognize that man?
Ты узнаёшь э́ту де́вушку?
Do you recognize that girl?

Imperative
ты	узнава́й
вы	узнава́йте

Active present	узнаю́щий	recognizing
Active past	узнававший	recognizing, who was recognizing
Passive present	узнава́емый	recognizable or well known
Passive past	-
Gerund present	узнава́я	while doing (present)
Gerund past	узнава́в узнававши	while doing (past)