1. Don't touch the stove. You may get a burn.

→ Don't + V ... . S + may + V ... .

2. Don't play with the sharp knife! You may cut yourself.

→ Don't + V ... . S + may + V ... .

3. He's riding his bike too fast. He may fall off his bike and break his leg.

→ S + tobe + V-ing ... . S + may + V ... .

4. Nam shouldn't run down the stairs. He may fall off and break his arm.

→ S + should/shouldn't + V ... . S + may + V ... .

5. She shouldn't play with that cat. It may scratch herself.

→ S + should/shouldn't + V ... . S + may + V ... .