Some fool in a company has given him this thing to use for six months, part of a promotion.

I haven't used drugs for 22 months and 6 days.

After 63 years work, the new harbour was only used for four months.

Eggs can be kept fresh using this method for up to five months.

I have used it for at least 6 months.

Keep using birth control for at least 6 months after your treatment ends.

Additional birth control must be used for three months after procedure.

These drugs can only be used for six months at a time.

It was used for 3 months, then abandoned in late Summer 1846.

Besides, they have been used for only three months a year.