How to use "stumbled" in a sentence

Sentences

The cat pounced, missed its prey, stumbled, scared itself, and flashed lightning-quick into another yard.

She stumbled and fell into the side of the sports car, banging her knee painfully.

Lincoln, and the boys stumbled across a place like that in the Sierras?"

The gun struck him alongside the head, and he stumbled backward against the steel door.