He helped his mum变否定怎么做？

Ihelpedmymum如何变否定句？~

原句含有实义动词helped，说明时态是一般过去时，变成否定句，需要在实义动词前加助动词didn't，且动词用原形，所以否定句是I didn't help my mum.

I didn't help my mum.
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He didn't help his mum.
主谓宾结构的句子变否定，只需在谓语前加助动词的否定形式don't/doesn't/didn't即可。因为helped是过去式，所以用didn't。

这句话的意思是，他帮助过他的妈妈，这是一句一般过去时态的陈述，句句子结构为主，谓宾，所以要在一般过去时的动词前面，加上都do not表示否定，加上是过去式，所以使用did not，改为He didn't help his mom

变为否定句的话，只需要在谓语动词先加成主动自动弹，其余保持不变，把原句照抄下来就可以了。

He helped his mum.变否定句是在动词前加助动词didn't,helped改为原形 help

He didn't help his mum.

He helped his mum的否定句为： he not helped his mum.

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汝城县15546005364： 他帮妈妈买了很多东西英语怎么写 - ？
再泽尤斯： he helped his mother to buy many things

汝城县15546005364： he helped his mother do some housework as soon as he - ---his home - ？
再泽尤斯： 1 He helped his mother do some housework as soon as he got to his home. 2.Today,many famous people come to the city to visit this school.

汝城县15546005364： he helped his mother wash clothes后面wash用原形是因为help后接动词原形吗? - ？
再泽尤斯： 连接两个动词的时候一般会使用介词to,但是一些特殊的动词后面可以加这个to也可以不加,比如说help,所以这使用原型是因为省略了to.

汝城县15546005364： 下午他帮妈妈做家务 然后和他爷爷下象棋 用英语怎么写 - ？
再泽尤斯： 下午他帮妈妈做家务,然后和他爷爷下象棋.1. In the afternoon he helped his mother do the housework, and then he played chess with his grandfather.2. He helped her mother with household chores in the afternoon, and then, and his grandfather chess.

汝城县15546005364： He helped his mother - ___ - the housework after he finished his homework yesterday.[ ] - ？
再泽尤斯：[选项] A. do B. clean C. did D. cleaned

汝城县15546005364： he helped her mother clean the room.helped her mother与后面clean the room时态为什么不一样?有何区别 - ？
再泽尤斯： 时态决定在第一个动词 helped上,是一般过去时 而 clean the room 是由结构: help sb. (to ) do 决定的,所以用: clean the room所以; helped her mother 和 clean the room时态不一样呀翻译: 他帮母亲打扫屋子. ( he 和 her不搭配,应该是: he/ his, she/ her)祝你学习进步,更上一层楼! (*^__^*) 不明白的再问哟,请及时采纳,多谢!

汝城县15546005364： 他正在帮他妈妈做家务.变过去式 - ？
再泽尤斯： he was helping his mum to do house work

汝城县15546005364： He is helping his mum clean the house的意思？
再泽尤斯： help sb to do sth里面省略掉to

汝城县15546005364： He help his mother wash the clothes last weekend.里的help为什么不用加s - ？
再泽尤斯： 你的句子是错误的,因为后面时间状语是last weekend,表示过去,要用过去时,要加ed的,He helped his mother wash the clothes last weekend ,主语是单数时只有一般现在时的时候谓语才加s

汝城县15546005364： He help his mother do housework. 变过去式 - ？
再泽尤斯： He helped his mother do housework. 解析:help sb. do 是省to不定式,help后面的动词要跟原型,所以,过去时改为helped sb.do,不可以是help sb. did.