1. If / When + Present Indefinite , Future Indefinite.
Ans. If she works hard, she will pass the examination.
e.g. I _______ ( buy ) a car if he gives me money.
Ans. I will buy a car if he gives me money.
e.g. She will complain the police if he ______ ( tease ) her.
Ans. She will complain the police if he teases her.
2. Present Perfect Continuous + since + Past Indefinite.
e.g. She ______ ( work ) here since she _____ ( leave) the job.
Ans. She has been working here since she left the job.
3. Present continuous + when + Past indefinite.
e.g. I _____ (walk) along the beach when I ______ ( compose ) a poem.
Ans. I was walking along the beach when I composed a poem.
4. Present continuous + while + Present continuous.
e.g. I _____ ( read ) while my brother _____ ( sing ).
Ans. I was reading while my brother was singing.
e.g. He got the job while he _____ ( be, not ) educated.
Ans. He got the job while he is not educated.
5. Past perfect + before + Past indefinite.
e.g. The train ______ ( leave ) before I _____ ( reach ) the station.
Ans. The train had left before I reached the station.
6. Past indefinite + after + Past perfect
e.g. I _____ ( wash ) the vessels after the guests ______ ( go ) .
And. I washed the vessels after the guests had gone.
7. Past perfect ( first event, some days ago) , past indefinite ( second event ).
e.g. I ______ ( send ) the letter which you _____ ( receive ) yesterday.
Ans. I had sent the letter which you received yesterday.
8. Past indefinite ( first event, recently ) , past indefinite ( second event )
e.g. My mother ______ ( prepare ) sweets which my friends _____ ( enjoy ) on my birthday.
Ans. My mother prepared sweets which my friends enjoyed on my birthday.
9. Future perfect + before + Present indefinite
e.g. I shall have taken my bath before the sun _____ ( rise ).
Ans. I shall have taken my bath before the sun rises.
10. First sentence + unless + Present/ Past indefinite
e.g. Don't move from here unless she ______ ( finish ) her work.
Ans. Don't move form here unless she finishes her work.
e.g. I did not let him go unless he ______ ( return ) my money.
Ans. I did not let him go unless he returned my money.
11. If + Past indefinite , sub + would + 1st form of verb + ob.
e.g. If he gave me money , I _____ ( buy ) a car.
Ans. If he gave me money , I would buy a car.
12. If + Past perfect , sub + would have + 3rd form of verb + ob.
e.g. If she had accepted my proposal I ____ ( marry ) her.
Ans. If she had accepted my proposal I would have married her.
or
Future Indefinite + if / when + Present Indefinite
e.g. If she ______ ( work ) hard, she ______ pass the examination.Ans. If she works hard, she will pass the examination.
e.g. I _______ ( buy ) a car if he gives me money.
Ans. I will buy a car if he gives me money.
e.g. She will complain the police if he ______ ( tease ) her.
Ans. She will complain the police if he teases her.
2. Present Perfect Continuous + since + Past Indefinite.
e.g. She ______ ( work ) here since she _____ ( leave) the job.
Ans. She has been working here since she left the job.
3. Present continuous + when + Past indefinite.
e.g. I _____ (walk) along the beach when I ______ ( compose ) a poem.
Ans. I was walking along the beach when I composed a poem.
4. Present continuous + while + Present continuous.
e.g. I _____ ( read ) while my brother _____ ( sing ).
Ans. I was reading while my brother was singing.
e.g. He got the job while he _____ ( be, not ) educated.
Ans. He got the job while he is not educated.
5. Past perfect + before + Past indefinite.
e.g. The train ______ ( leave ) before I _____ ( reach ) the station.
Ans. The train had left before I reached the station.
6. Past indefinite + after + Past perfect
e.g. I _____ ( wash ) the vessels after the guests ______ ( go ) .
And. I washed the vessels after the guests had gone.
7. Past perfect ( first event, some days ago) , past indefinite ( second event ).
e.g. I ______ ( send ) the letter which you _____ ( receive ) yesterday.
Ans. I had sent the letter which you received yesterday.
8. Past indefinite ( first event, recently ) , past indefinite ( second event )
e.g. My mother ______ ( prepare ) sweets which my friends _____ ( enjoy ) on my birthday.
Ans. My mother prepared sweets which my friends enjoyed on my birthday.
9. Future perfect + before + Present indefinite
e.g. I shall have taken my bath before the sun _____ ( rise ).
Ans. I shall have taken my bath before the sun rises.
10. First sentence + unless + Present/ Past indefinite
e.g. Don't move from here unless she ______ ( finish ) her work.
Ans. Don't move form here unless she finishes her work.
e.g. I did not let him go unless he ______ ( return ) my money.
Ans. I did not let him go unless he returned my money.
11. If + Past indefinite , sub + would + 1st form of verb + ob.
e.g. If he gave me money , I _____ ( buy ) a car.
Ans. If he gave me money , I would buy a car.
12. If + Past perfect , sub + would have + 3rd form of verb + ob.
e.g. If she had accepted my proposal I ____ ( marry ) her.
Ans. If she had accepted my proposal I would have married her.
