КАЖДОЕ ПРЕДЛОЖЕНИЕ ОБРАЗОВАТЬ В 3 УСЛОВНЫХ ТИПА 1) If you (to be) busy, I (to leave) you alone. 2) If my friend (to come) to see me, I (to be) very glad. 3) If he (to send)an e-mail, we (not toworry).

1If you are busy Ill leave you alone.
If you were busy I would leave you alone.
If you had been busy I would have left you alone.
2If my friend comes to see me I will (shall)be very glad.
If my friend came to see me I would be very glad.
If my friend had come to see me I would have been very glad.
3If he sends an e-mail we wont(shant) worry.
If he sent an e-mail we wouldnt worry.
If he had sent an e-mail we wouldnt have worried.