irregular verbs

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Across
  1. 1. past form of the verb to leave
  2. 3. past form of the verb to see
  3. 5. past form of the verb to ring
  4. 6. past form of the verb to shut
  5. 7. past form of the verb to stand
  6. 8. past form of the verb to lay
Down
  1. 2. past form of the verb to teach
  2. 4. past form of the verb to write
  3. 6. past form of the verb to sleep
  4. 7. past form of the verb to swim