His legs gave out, and he collapsed onto the floor.

She tried to stand but collapsed once more onto the chair.

As be fell I got under him so he collapsed onto my shoulder.

In case it collapses onto me actually we should stand a little bit further away from the building.

He let go of her hand and half collapsed onto the couch.

I hadn't been able to get out of the uniform on my own, and had just collapsed onto the bed still in it.

He watched as his brother collapsed onto the cold stone floor.

She collapsed onto the floor and fell over her knees.

The runner took a step, then collapsed onto the ground.

Then her knees gave way, and she collapsed onto the box.