It is impossible to master English in a short time.

Source: Tatoeba

It is very important to master English in short time.

Source: Tatoeba

This case might not get resolved for a while.

Source: Tatoeba

My colleague and I do the same job, but he was promised a promotion in a very short while.

My colleague and I do the same job, but she was promised a promotion very soon.

Source: Tatoeba