Irregular verbs 1 through 10

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Across
  1. 2. Past participle of "to break" (6 letters)
  2. 3. Past simple of "to burn" (5 letters)
  3. 4. Past simple of "to buy" (6 letters)
  4. 5. Past simple of "to bite" (3 letters)
  5. 6. Infinitive form of "was" (2 letters)
  6. 7. Past participle of "to build" (5 letters)
Down
  1. 1. Past simple of "to become" (6 letters)
  2. 2. Infinitive form of "bet" (3 letters)
  3. 3. Past participle of "to bring" (7 letters)
  4. 5. Infinitive form of "began" (5 letters)