nie potrafić in inglese:

It can't be!

If it's okay for him to buy a knife, then why on earth can't I?

Sometimes they say, "I can't go to school today. I'll go tomorrow."

You can't park in a handicapped parking space unless you have a special permit.

If you can't go to an English-speaking country to study, perhaps you can find an English native speaker living nearby that can help you learn English.

What should we do with people who are very sick or hurt and can't get better?

If you can't take it, give up and do what I, your older sister, asked of you.

Expensive meals can't compensate for lack of sleep.

Tom can't swim at all. On the other hand, he is a good baseball player.

Please hide the blueberry jam where Takako can't see it.

The dress is too expensive. Can't you sweeten the deal a little?

Can't you see a stapler somewhere around there?

I know he will only continue disappointing me, but I can't help loving him.

What'll you do if you can't find enough food to feed your family?

You need to stop complaining all the time about things that can't be changed.