Complete the sentences. Write each sentence three times in first, second and third conditionals

E.g. If you (to be) free, I (to come) to see you.:

If you are free, I will come to see you.

If you were free, I would come to see you.

If you had been free, I would have come to see you.

If I (to see) her, I (to be) glad.

If I see her, I will be glad.

If I saw her, I would be glad.

If I had seen her, I would have been glad.

1. If my friend (to come) to see me, I (to be) very glad. 2. If mother (to buy) a cake, we (to have) a very nice tea party. 3. If we (to receive) a telegram from him, we (not to worry). 4. If you (not to work) systematically, you (to fail) the examinations. 5. If you (to be) busy, I (to leave) you alone. 6. If I (to live) in Moscow, I (to visit) the Tretyakov Gallery every year. 7. If I (to get) a ticket, I (to go) to the Philharmonic. 8. If I (to live) near a wood, I (to gather) a lot of mushrooms. 9. If my father (to return) early, we (to watch) TV together. 10. If she (to know) English, she (to try) to enter the university.

Change the sentences of real conditions into unreal conditions in the present or future and in the past.

1. If I am not too busy, I shall go to the concert. 2. They will all be surprised if I make such a mistake. 3. If he doesn't come in time, shall we have to wait for him? 4. If no one comes to help, we shall be obliged to do the work ourselves. 5. If you put on your glasses, you will see better. 6. What shall we do if they are late? 7. Will you be very angry if we don't come? 8. Will he be very displeased if I don't ring him up?