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Structural patterns. 1. Would + infinitive in simple sentences
1. Would + Infinitive in Simple Sentences... it would be very hard for him to rest there in the city. In simple sentences would + indefinite or perfect infinitive generally denotes an unreal action (the Analytical Subjunctive). The indefinite infinitive refers the action to the present or future, the perfect infinitive - to the past.
Note: the phrases I should (would) think (have thought), I should (would) say (have said) are common and are generally used to lend the sentence a milder and more polite form. Their use in this case differs from the use of the Indicative Mood only stylistically.
2. Need + Infinitive Не needn't tell anybody where he is. The modal verb need denoting necessity is used only in negative and interrogative sentences. The time reference of the action is shown by the form of the infinitive. The indefinite infinitive refers the action to the present; the per--fect infinitive refers it to the past. Need + perfect infinitive expresses an action which has been performed though it was not necessary. It implies a waste of time and effort.
Note: Didn't have to do smth shows that the action did not take place.in the past because it was unnecessary.
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