英语中的助动词主要包括以下几类:
基本助动词
`be` (am, is, are, was, were)
`have` (have, has, had)
`do` (do, does, did)
半助动词
`be about to`
`be due to`
`be going to`
情态助动词
`can`
`could`
`may`
`might`
`must`
`shall`
`should`
`will`
`would`
`ought to`
`had better`
`dare to`
`used to`
`need`
`would rather`
`might as well`
助动词的主要作用是协助主要动词构成谓语,帮助表达时态、语态、疑问句、否定句以及加强语气。
您我很乐意继续帮助您