How to say in Czech: He was not careful enough.

English
was not careful enough.
Czech
On nebyl dost opatrný.
He will be careful.
Be careful!
He is not old enough.
He is not old enough for her.
He is not old enough for that.
He does not have enough chairs.
He does not have enough money.
He is old enough to stand on his own feet.
He is old enough to make his own decisions.
Does he have enough money?

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