Inside the verb phrase

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Across
  1. 3. Which modality expresses possibility/certainty/doubt?
  2. 4. Which type of verb determines the argument structure of the sentence?
  3. 5. The verb class that takes one predicative complement
  4. 6. Together with the copula, auxiliary verbs can funtion as what?
  5. 7. The verb class that requires one (direct) object and one (object) PC
  6. 10. Which modality expresses obligation/permission?
Down
  1. 1. What is the verb form that follows the modal?
  2. 2. The aspect that precedes the -ing verb
  3. 8. The aspect that precedes the perfect participle
  4. 9. The verb class that does not require objects or complements