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Grammar way three part 15

My biggest letter-writing success, however, came this summer, when my family and 1 stayed with my American pen friend In Texas. Everyone was amazed that a correspondence could last so long. The local press even considered the correspondence worth reporting in the front page. | Conditionals-Wishes-Would Rather Had Better- UNIT 8 vial Past Conditional clauses consist of two parts the if -clause hypothesis and the main clause result . When the if - clause comes before the main clause the two clauses are separated with a comma. When the main clause comes before the if - clause then no comma is necessary. e.g. a If I see Tim I ll give him his book. b I ll give Tim his book if I see him. We can omit If in the if - clause. When If is omitted should Type 1 were Type 2 had Type 3 and the subject are inverted. e.g. a Should Peter come tell him to wait. lf Peter should come . b Were I you I wouldn t trust him. lf I were you . c Had he known he would have called. lf he had known . We do not normally use will would or should in an if - clause. However we can use will or would after if to make a polite request or express insistence or uncertainty usually with expressions such as f don t know I doubt I wonder etc. . We can use should after if to talk about something which is possible but not very likely to happen. e.g. a If the weather is fine tomorrow we will go camping. NOT If the weather wiU be fine b If you will fill in this form I ll process your application. Will you please fill in. polite request c If you will not stop shouting you ll have to leave. If you insist on shouting. - insistence d I don t know if he will pass his exams uncertainty e If Tom should call tell him I ll be late. We do not think that Tom is very likely to call. We can use unless instead of if. not in the if -clause of Type 1 conditionals. The verb is always in the affirmative after unless. e.g. Unless you leave now you ll miss the bus. lf you don t leave now you ll miss the bus. NOT Unloee you don t leave now . We can use were instead of was for all persons in the if - clause of Type 2 conditionals. e.g. If Rick was were here we could have a party. We use If I were you . when we want to give advice. e.g. If I were you I wouldn t complain about it. The following expressions .