Irregular verbs - past simple and past participle

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Across
  1. 4. past simple of to leggen
  2. 6. past participle of tekenen, trekken
  3. 7. past participle of to liggen
  4. 11. past participle of leunen
  5. 12. past participle of verdragen
  6. 13. past simple of huilen
Down
  1. 1. past participle of vliegen
  2. 2. past simple of verstoppen
  3. 3. past participle of hangen
  4. 5. past simple of kruipen
  5. 8. past simple of to ontstaan
  6. 9. past simple of to vluchten
  7. 10. past simple of liggen
  8. 12. past simple of bijten