irregular verbs

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Across
  1. 1. spell-spelt-spelt
  2. 3. understand-understood-understood
  3. 6. win-won-won
  4. 7. sleep-slept-slept
  5. 8. stand-stood-stood
  6. 9. tell-told-told
Down
  1. 2. teach-taught-taught
  2. 4. think-thought-thought
  3. 5. smell-smelt-smelt
  4. 7. spend-spent-spent