Irregular verbs 1-2

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Across
  1. 1. Past of swim
  2. 3. Past of stirke
  3. 4. Past of begin
  4. 5. Past participle of ring
  5. 6. Infinitive of sing
  6. 7. Past participle of sing'
Down
  1. 1. Infinitive of stink
  2. 2. Infinitive of drink
  3. 4. Past participle of begin
  4. 6. Past participle of spin