English grammar worksheet focusing on the correct usage of "have" and "has" in various sentences.

To solve this worksheet, I need to determine whether each sentence requires "have" or "has." The rule is simple:

- Use have with: I, you, we, they, and plural nouns.
- Use has with: he, she, it, and singular nouns.

Let me go through each sentence one by one:

1. "You ___ known him for three years." → Subject is "you" → have
2. "It ___ been coming for a long time." → Subject is "it" → has
3. "It ___ been on our mind for some time." → Subject is "it" → has
4. "I ___ a right to hear it." → Subject is "I" → have
5. "She ___ told me all about it." → Subject is "she" → has
6. "I ___ other things on my mind." → Subject is "I" → have
7. "What ___ mother to do with it?" → This is asking "What has mother to do with it?" (British English expression meaning "what does mother have to do with it"). Subject is "mother" (singular) → has
8. "She ___ her own way, I suppose." → Subject is "she" → has
9. "She ___ never yet opened her mouth." → Subject is "she" → has
10. "Something ___ got to be done." → Subject is "something" (singular) → has
11. "He ___ got a chance, I think." → Subject is "he" → has
12. "The day ___ passed to allow it." → Subject is "the day" (singular) → has
13. "I don't know where he ___ gone." → Subject is "he" → has
14. "He ___ always held you under his hand." → Subject is "he" → has
15. "But what ___ it to you?" → Subject is "it" → has
16. "He ___ been with me all day." → Subject is "he" → has
17. "It's what she ___ never been." → Subject is "she" → has
18. "It ___ a bad effect on the young." → Subject is "it" → has
19. "I ___ said the name over many times." → Subject is "I" → have
20. "You ___ brought it all back." → Subject is "you" → have

Let me double-check my work:

1. You have ✓
2. It has ✓
3. It has ✓
4. I have ✓
5. She has ✓
6. I have ✓
7. What has (mother = singular) ✓
8. She has ✓
9. She has ✓
10. Something has ✓
11. He has ✓
12. The day has ✓
13. He has ✓
14. He has ✓
15. What has (it = singular) ✓
16. He has ✓
17. She has ✓
18. It has ✓
19. I have ✓
20. You have ✓

All answers look correct.

Final Answer:
1. have
2. has
3. has
4. have
5. has
6. have
7. has
8. has
9. has
10. has
11. has
12. has
13. has
14. has
15. has
16. has
17. has
18. has
19. have
20. have