How to say in Czech: He has found out something.

English
has found out something.
Czech
On něco zjistil.
I found it something of a disappointment.
Has he lost something?
He has lost something.
Did he do something wrong?
Did he say something wrong?
Does he smell something burning?
He knew there was something wrong.
He needs something stronger.
He smells something burning.
He wants to try something new.

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