Give the noun forms of the following verbs. Take care with spelling.

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Across
  1. 3. occur
  2. 4. emerge
  3. 5. begin
  4. 6. oversee
  5. 9. deny
  6. 10. hinder
Down
  1. 1. hate
  2. 2. refer
  3. 7. explain
  4. 8. save (economics)