To be and ing form

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Across
  1. 2. use for third person singular
  2. 4. catching
  3. 6. typing
  4. 8. sleeping
  5. 10. watching
  6. 12. swimming
  7. 13. use for third person singular
  8. 14. booking
  9. 15. running
  10. 16. talking
  11. 18. reading
Down
  1. 1. writing
  2. 3. waiting
  3. 5. recording
  4. 7. painting
  5. 9. listening
  6. 10. walking
  7. 11. cooking
  8. 12. singing
  9. 17. is use for first person singular