i must water the garden first.doi must water the garden first.do you have to water it now?第一句为什么可以不加have to .第二句要加

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i must water the garden first.doi must water the garden first.do you have to water it now?第一句为什么可以不加have to .第二句要加

i must water the garden first.doi must water the garden first.do you have to water it now?第一句为什么可以不加have to .第二句要加
i must water the garden first.do
i must water the garden first.do you have to water it now?第一句为什么可以不加have to .第二句要加

i must water the garden first.doi must water the garden first.do you have to water it now?第一句为什么可以不加have to .第二句要加
第一句把 must 换成了 have to 没有问题:I have to water the garden first.
第二句把 have to 换成了 must,这个句子就有语法错误了:Do you must water it now?
疑问助动词 do 和情态动词不能同时出现在一个句子里.你再看看上面这个句子有什么问题?

肯定句和疑问句的区别

为啥回答这个问题的都跟没学过英语赛的 must主观 have to客观 小学没毕业?

must 表示的是主观愿望,“必须”,在这里说明I我浇水water并不是被迫的。
have to 表示的客观要求,“不得不”,do you have to water it now?你现在就得浇水吗?

must在意思上和have to差不多。