Forms of verbs

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Across
  1. 4. freeze
  2. 6. burn
  3. 7. fight
  4. 8. drive
  5. 9. hold
Down
  1. 1. forbid
  2. 2. sing
  3. 3. feed
  4. 5. begin
  5. 6. bite
  6. 7. fall