Take this man to the hospital and see that he is well treated but under constant guard.

He was held under constant guard in Room 409.

Therefore, he obtained a constant guard until we tipped our hand.

What you need is a constant guard, night and day.

She tried to leave him but he imprisoned her in a small house under constant guard.

They must be something special to have a constant guard over them.

He would not need his constant guard with them.

But I do not intend to live with a constant guard at my back.

"We'll have you under a pretty solid and constant guard," she assured him.

She must be on constant guard with him, as she well knew.