Not wanting to is the reason; not being able to is just an excuse.

Source: Tatoeba

We can't let them do that.

Source: Tatoeba

What she said can't be believed.

Source: Tatoeba

I can't stand this pain any more.

I cannot put up with this pain any more.

I can't take this pain anymore.

Source: Tatoeba

You can't fall asleep.

Source: Tatoeba

I can't drink milk.

Source: Tatoeba

The school rules that students cannot smoke.

Source: Tatoeba

Tom says he doesn't swim.

Source: Tatoeba

Tom told Mary he couldn't do what she asked him to do.

Source: Tatoeba

Tom can't tell Mary his real feelings.

Source: Tatoeba

Tom couldn't decide where to begin.

Source: Tatoeba

You cannot do this.

Source: Tatoeba

He was allowed to go swimming on condition that he be kept near the other boys.

Source: Tatoeba

I wonder if Tom can help us.

Source: Tatoeba

No words can relieve her deep sorrow.

Source: Tatoeba

I'm sorry, without an I.D. you cannot receive a remittance.

Source: Tatoeba

You can't equate nationalism with fascism.

Source: Tatoeba

Can't you lower your voice?

Source: Tatoeba

I can't have him as my teacher.

Source: Tatoeba

I can't live that kind of life.

Source: Tatoeba

Oh no, oh no! It can't be so!

Source: Tatoeba

Wealth could not muddle his thoughts, poverty could not change his integrity, force could not oppress his will, this is what it means to be a man.

Source: Tatoeba

I couldn't do this all alone.

Source: Tatoeba

I can't ride a bike because it is raining today.

Source: Tatoeba

I can't believe Tom is getting married.

Source: Tatoeba

I can neither confirm nor deny that.

Source: Tatoeba

You can't use this washing machine.

Source: Tatoeba

From a strictly scientific point of view, history cannot be called a science.

Source: Tatoeba

I couldn't take my eyes off of you from the minute I entered this room.

Source: Tatoeba

We cannot overestimate the value of health.

Source: Tatoeba