Teaching in role is a strategy which a great many teachers have found extremely useful.

But this time she claimed to have found nothing useful.

National Lotteries have been found useful at several times in our history.

The list offered here is not a closed one; the items put forward are simply those which have been found useful.

We are nearly through with the books here, and we've found nothing useful.

I don't doubt but they'll be found useful to have about the house.

"My position there allowed me to receive information which others found very useful."

Linda learned a great deal about intellectual property rights, which she found useful in her later career.

I hope that institutions have found the guidance useful this year.

It has also been found useful for protecting other crops.