They can last for months, weeks or just a few hours.

They may last for weeks or months and usually go away on their own.

Of course, it was to last for only three weeks.

It may last for weeks or not happen at all.

But after this day, it might not last for more than two or three weeks.

The protection is expected to last for at least six weeks.

Now he was in charge, and that would last for weeks.

This change in strength can last for weeks or longer.

You will probably feel better in a few days, but some symptoms may last for several weeks.

These marks can last for weeks or months and go away on their own without any treatment.