How to say in Czech: That was stupid of us.

English
That was stupid of
Czech
To bylo od nás hloupé.
I am trying not to be stupid.
You are such a stupid boy!
Do not do anything stupid!
I find this whole discussion really stupid.
That’s a stupid question.
Excuse us.
Do they understand us?
That was not very polite of us.
That was very impolite of us.
That was very kind of us.

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