1-I cut myself with a knife.
2-I finished the crossword by myself.
3-He lives all by himself in that large house.
4-She can mend the fridge by herself.
5-We went on holiday by ourselves.
6-She fell off her bicycle. She hurt herself.
7-Sometimes my brother talks to himself when he's alone.
8-Don't pay for them. They paid for themselves.
9-Jane had dinner by herself.
10-Do you go to school by yourself?