Across
- 4. woman
- 5. tooth
- 7. loaf (change the _ to _ and add -es)
- 8. fly (drop the _ and add -ies)
- 10. bush (same rule as word with -x at the end)
- 11. mouse
- 12. foot
- 13. man
Down
- 1. box (it ends with an x so we add_ _)
- 2. goose (change middle vowel)
- 3. child
- 6. wolf
- 9. person
- 10. butterfly
