Ought to Modal auxiliary verbs "ought to" just the obligation; the need according to logic or expectation: You ought to start at once (You should start immediately); They ought to be here by now (They need here at the moment)."Ought to" and "should" indicates the modal meaning "obligation" or "sựu" but the logic required by the level imposed, not by strength "must" and "have to". In these sentences the permutation of order from (inversion), the "should" be more preferred. When should denote the level of softer imposed are denoted by "ought to", you can use the form "had better/d/' best": a. Must you go? (You have to go?); b Well, I don't have to, but I think I'd better (go) (eh, not required, but I think I should go now).In Vietnamese, from the State has no capability of time. Burning other than the Vietnamese, the form of some action from the English State had the ability to indicate the time. The following are current and past form of the verb: can-could; may-could (might); shall – should; will-would; must-(had to); dare-dared."May" when it means "permission in the past" was replaced by "could": Today, we can/may stay the whole afternoon (today we are allowed to stay in the afternoon); Yesterday, we could only stay for a few minutes (yesterday we are only allowed to stay a few minutes).The following verbs do not appear in the past except when used in indirect speech "" must "," ought to "and" need ". Figure thwucs the past of "must" and "have to" be "had to". For example, He must/has to leave now (he is away at the moment); He * must/had to leave in a hurry yesterday (he must go a way vỗi gold today); Yesterday the children * must/ought to/* needn't/? daren't, dared not/did not dare go out and play (yesterday the children that dare not outside); He said the children must/ought to///daren't needn't dared not/didn't dare go out and play (he says that the child that must/should/not required/not dare out of play). In English, some refugees from the medium can be used as auxiliary verbs are the auxiliary verbs medium status the status of the medium can be used as lexical verbs: "need" and "dare". As auxiliary verbs, the verb generally appears in the questions and negative sentences: Need he go now? (He needed to go now?) He Needn't go now? (He doesn't need to go now?); * He need go now. "To dare" is from special relativity in English in characteristics can blend of the two constructions in a linguistic form. For example, We do not dare speak (we dare not say).3.3.2. Similarities and differences between English and Vietnamese in the use from the State as the means of expressing the role, the position of the people says: + Similarities:-From meaning the status of both languages can appear in different question types: language selection question, select hidden and unspoken question questions not selected.-from the State of both English and Vietnamese thía are capable of the same in the transfer the meaning associated with the auxiliary thía State the role, the position of the participants communicate. In particular, the words denoting the volition, authority, permission, willingness: CAN, COULD, MAY, MIGHT, SHOULD, SHALL, ... + The difference:For example:-In Vietnamese, from the closed status agent language function uses the ngữu information transfer supplements subtle, diverse, flexible placed last sentence.-In English, the language information supplements are expressed primarily by way of language and rhythm associated with the position and meaning of the status of the auxiliary verbs in function-structure agent status. The support from the State as the agent status-this structure appears in the following location:(i) the location of the beginning of the sentence in question does not have a from ask (Yes-No questions, tag questions, declarative questions) and the question of language selection (Explicit alternative questions): Can't you help me now? (You can't help me now?). You may or may not help me at this time? (Can you or can't you help me now?/Can you help me now or not?); They could not come in time, right? (They can't come on time, can they?).(ii) after the word question in the questions from ask (Wh-question): What can I do for you now? (What can I do for you now?).In addition to the support from the State, that the status of English was conveyed in the highs and other structural types such as adverbs, intonation, ... The location of the filler from this status is quite flexible and the tuw8f is often the focus question. For example: they've got there by now, probably? They've probably got there by now? Probably, they've got there by now? (Maybe they have there at the moment?).Morphology:Auxiliary verbs-English thía State capable of morphological change to indicate the time of the action. For example: Can (current _ > could (past).
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