At the other extreme we have seen cases where such a plan is clearly impossible.

I have seen such cases before, and they are most serious.

He had seen cases like this one a hundred times before.

I also have seen cases in which people feel worse after surgery.

Harry had seen cases like this before; but never on such a large scale.

Have you seen cases of this sort in your practice?

"We see cases like this two or three times a year."

We often see cases where one side (usually the mother) simply says no.

"I've seen worse cases than this come back under medical treatment," I told them.

They'd seen several cases in the past few weeks at the college.