Two English verbs need to be considered separately because they have a slightly more complicated
conjugation in the present tense. These verbs are to be and to have. The conjugation of these two
verbs is significant because, besides being able to function alone in a sentence, they can also serve as
auxiliaries of other verbs and in tenses other than the present tense.
Answers:
1. are 2. is 3. are 4. am 5. is 6. are 7. are 8. is 9. is 10. are 11. have 12. have 13. has 14. has
15. have 16. have 17. has 18. have 19. has 20. has
