Auxiliary verbs are used to form tenses or passive forms of other verbs. The main ones are be, do, and have.用来辅助其他动词构成时态或被动语态的动词，如be、do、have、will。注意：当have用作助动词时，主要用来构成完成时态；当will用作助动词时，主要用来构成将来时态。2、情态动词 A modal verb ...
In this lesson we look at the forms ofmain verbsandhelping verbsfollowed by a quiz to check your understanding. Forms of Main Verbs Main verbs (except the verb "be") have 3, 4 or 5forms. The verb "be" has 8 ...
were, been, being, have, has, had, could, should, would, may, might, must, shall, can, will, do, did, does, having When we put one or more helping/auxiliary verb with a main verb, we get what is called a verb phrase.
复合谓语包括情态动词+ 动词原形、连系动词+ 表语、动词短语及被动语态be done、进行时态be doing、完成时态 has/ have done、将来时态will do / be going to do 等。 (1)You can make a difference if you are confident.(2)He was followed by the fans.(3)I was about to go out when my phone ...
【例句4】We have a verbal agreement with her. (我们与她达成了口头协议。)【例句5】The West must back up its verbal support with substantial economic aid. (西方必须用大量的经济援助来支撑它的口头援助)【例句6】They were jostled and subjected to a torrent of verbal abuse. (他们被推挤，并遭到...
have laughed was going to laugh Past Tense: laughed, was/were laughing, had laughed, had been laughing Present Tense: laugh, am/is/are laughing, has/have laughed, has/have been laughing Future Tense: will laugh, will be laughing, will have laughed, will have been laughing ...
have has not 've 's "I've an idea". auxiliary had We'd all had a good time examples 1.2. Negative forms of themain verbto have. Take care:The normal negative forms of themain verbhave / hasaredo not haveanddoes not have, or their shortened forms. These arenotthe same as the ...
9.I'm hungry.I(have)breakfast four hoursago and I(not have)a meal since then.10.How longyouwork in thisoffice,Miss James?I(work)here for thirty years!I.Fill in the blanks with the correct form of the verb given.用 所给动词的正确形式填空. l._you _(read)this magazine yet? Yes,I...
the verb. The verb must agree with its subject. In the simple presenthasshould be used with a third person singular subject (Mary, Jim, he, she, it, the book, a cat, etc.), andhaveshould be used in all other places. Below is a chart showing when to usehasand when to usehave. ...