weiß nicht, wie es geht

doesn't know how to do it

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phrase Rare #47,417
doesn't know how to do it Used to say that someone does not know how something works or how to perform an action. The subject changes the verb: ich weiß nicht, wie es geht means “I don't know how to do it.”
GE: Ich möchte das Fahrrad reparieren, aber ich weiß nicht, wie es geht.
EN: I want to repair the bike, but I don't know how to do it.

Bedaure, ich weiß nicht, wie es geht.

Sorry, I don't know how to do it.

— Durst - Thirst (2009)

Tom weiß nicht, wie es geht.

Tom doesn't know how to do it.

Sie versucht zu pfeifen, doch sie weiß nicht, wie es geht.

She is trying to whistle, but she doesn't know how.

Rudy weiß nicht, wie es geht.

Rudy doesn't know how to do it.

— Malcolm X (1992)