His feet slipped and he tried to throw her off, but it was too late.

His feet slipped, and he went down with the stranger on top.

Then his foot slipped, and he fell, taking Bill with him.

He let his feet slip to the floor, moving to arise.

He leaned forward to get a better view and his foot slipped.

I try to grab her and my right foot also slips into the cold water.

But her foot slipped as she tried to climb up.

His feet slipped on the wet grass and went out from under him.

As he did so, his left foot slipped on the smooth rock.

His feet slipped in a small brook, and it was there he decided to stop.