Mike has to help his mother with the washing every Sunday.这里必须要用with吗?换成别的介词行不行?为什么,

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Mike has to help his mother with the washing every Sunday.这里必须要用with吗?换成别的介词行不行?为什么,

Mike has to help his mother with the washing every Sunday.这里必须要用with吗?换成别的介词行不行?为什么,
Mike has to help his mother with the washing every Sunday.这里必须要用with吗?
换成别的介词行不行?为什么,

Mike has to help his mother with the washing every Sunday.这里必须要用with吗?换成别的介词行不行?为什么,
help sb to do sth=help sb do sth=help sb with sth
固定结构,帮某人做某事
所以这个句子改成,
Mike has to help his mother do the washing every Sunday
Mike has to help his mother to do the washing every Sunday
都是对的

固定搭配,help sb. with sth. 帮助某人做某事

不可以,因为help sb with sth 这是一个固定搭配

help sb. to do sth.=help sb. with sth.
可改为Mike has to help his mother to wash every Sunday

help sb. with sth.
帮助某人做某事
也可以用 help sb. to do sth.
即Mike has to help his mother to wish clothes every Sunday.
这个似乎没什么好解释的 语言本来就没那么多为什么

help sb. do sth. 帮助某人做某事
help sb. with sth.在某事上帮助某人with后加名词
这里你可以写成do the washing,貌似还没有见过别的介词

不一定 help后面有三种接法
1.若后面是名词 就只能用help... with 比如你这种 washing 为名词
2。help sb to do
3.help sb do
所以你这句后面也可以改为 help his mom to do/do the washing every day