Irregular verbs

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Across
  1. 2. Past simple of the verb FORGET
  2. 3. Past simple of the verb BUY
  3. 6. Past participle of the verb DRINK
  4. 7. Past simple of the verb GIVE
  5. 8. Past participle of the verb MAKE
  6. 10. Past participle of the verb BEGIN
  7. 11. Past participle of the verb GO
  8. 12. Past simple of the verb DO
Down
  1. 1. Past participle of the verb WRITE
  2. 4. Past simple of the verb UNDERSTAND
  3. 5. Past simple of the verb HAVE
  4. 9. Past simple of the verb EAT
  5. 10. Past participle of the verb BE