15问答网 > is和does的区别是什么？如： when does your brother do his homework?可不可以说成 when is your brother

is和does的区别是什么？如： when does your brother do his homework?可不可以说成 when is your brother

2025-03-23 01:47:14

推荐回答（3个）

回答1：

不行，is是be动词，后面只能接名词，形容词，动词不定式to do，ing动词。例如：
he is to study hard .
she is cleaning her room .
does做实义动词是“做”的意思，如，he usually does his does homework afterschool . does做助动词无意义, 一般表示强调，he does do the homework. （他真的做了家作）或在疑问句中与动词原形连用does she do the homework ?
这应该就是它们的区别，而它们的共同点就是它们都只能用于单数形式，且是现在时。

回答2：

is既是助动词又是状态系动词
do既是助动词又实义动词
When does your brother do his homework?中does是do作助动词的第三人称单数形式它帮助实义动词do构成疑问句is只能构成时态和语态的变化

回答3：

is既是助动词又是状态系动词
do既是助动词又实义动词