Write the -ing forms of the given verbs.

1. to try - trying 2. to slice - slicing 3. to knit - knitting 4. to sew - sewing 5. to tie - tying 6. to travel - traveling 7. to open - opening 8. to lay - laying 9. to choose - choosing 10. to snorkel - snorkeling 11. to study - studying 12. to hang - hanging 13. to stay - staying 14. to drive - driving 15. to lie - lying 16. to tip - tipping 17. to fix - fixing 18. to sail - sailing 19. to take - taking 20. to see - seeing 21. to die - dying 22. to write - writing 23. to sit - sitting