irregular verbs

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Across
  1. 2. the past participle of build
  2. 3. the past simple of break
  3. 5. the past participle of beat
  4. 6. the past simple of buy
  5. 7. the past participle of be
Down
  1. 1. the past simple of can
  2. 2. the past participle of begin
  3. 4. the past simple of catch
  4. 5. the past participle of bite
  5. 6. the past simple of become