irregular verbs simple past

1234567891011
Across
  1. 1. sit
  2. 4. spend
  3. 5. understand
  4. 7. tell
  5. 8. wear
  6. 9. sing
  7. 10. wake
  8. 11. stand
Down
  1. 1. send
  2. 2. win
  3. 3. sleep
  4. 4. speak
  5. 6. think
  6. 7. take
  7. 10. write
  8. 11. swim