1. He be able to help you. (Correct)(Incorrect)
He may be able to help you. (Correct)
2. She have to sell her car and other belongings to pay her debts. (Correct)(Incorrect)
She might have to sell her car and other belongings to pay her debts. (Correct)
3. Where is Anna? – I don't know. She be at the swimming pool or in the park. (Correct)(Incorrect)
Where is Anna? – I don't know. She could be at the swimming pool or in the park. (Correct)
4. It be as easy as you think. (Correct)(Incorrect)
It might not be as easy as you think. (Correct)
5. Don't ring the doorbell when you get there. Maria's little baby sleeping. (Correct)(Incorrect)
Don't ring the doorbell when you get there. Maria's little baby may be sleeping. (Correct)
6. How did the robbers get in? – We don't know yet. The old woman to lock the door. (Correct)(Incorrect)
How did the robbers get in? – We don't know yet. The old woman might have forgotten to lock the door. (Correct)
7. I called her but there was no answer. She left for New York already. (Correct)(Incorrect)
I called her but there was no answer. She may have left for New York already. (Correct)
8. When can I see him? come back before six today? (Correct)(Incorrect)
When can I see him? Is he likely to come back before six today? (Correct)
9. I wonder who wrote that letter. Jim have written it? (Correct)(Incorrect)
I wonder who wrote that letter. Could Jim have written it? (Correct)
10. He said that he go to Italy in June or July. (Correct)(Incorrect)
He said that he might go to Italy in June or July. (Correct)