英语中的助动词通常位于主语和动词之间,构成肯定句。在有情态动词的句子中,情态动词位于主语前,其他助动词位于情态动词后。疑问句中,助动词位于主语前,否定句中,助动词位于not之后。在特殊情况下,如感叹句和强调句,助动词的位置会有所变化。
助动词的位置
一般来说,助动词放在主语和动词之间,构成肯定句。例如:
- She is reading a book.
- They have finished the task.
- He will come to the party.
当句子中有情态动词时,情态动词放在主语之前,其他助动词则放在情态动词之后。例如:
- You should take a break.
- She can speak three languages.
- He has to finish the report.
在疑问句中,助动词则放在主语之前。例如:
- Is she reading a book?
- Have they finished the task?
- Will he come to the party?
在否定句中,助动词放在not之后。例如:
- She is not reading a book.
- They have not finished the task.
- He will not come to the party.
特殊情况
在某些特殊情况下,助动词的位置会有所变化。
- 在感叹句中,助动词放在句首。例如:
- Is he a genius!
- 在强调句中,助动词放在被强调的词语之后。例如:
- I did finish the report.