Dialogue friends:-Hi!-Hi how are you doing?Fine, and you?-Tozhe.Davay Descend with you today at the rink.-Davay.Vo How many hours we meet?-As Sixteen hours.-Till.-Till.
1If you are busy I'll 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 won't(shan't) worry.
If he sent an e-mail we wouldn't worry.
If he had sent an e-mail we wouldn't have worried.
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