Irregular verbs

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Across
  1. 2. flee, ___, fled
  2. 4. ___, drove, driven
  3. 5. grind, ground, ___
  4. 7. go, ___, gone
Down
  1. 1. ___, flung, flung
  2. 3. eat, ate,___
  3. 4. dig, ___, dug
  4. 6. ___, drew, drawn