我不懂 现在完成时I have had trouble with cars ...和汽车发生了摩擦These have not had any effect.没有任何效果以上2句难理解.我只能理解：I have done my hw.这样的句型,但have+ had trouble,总觉得不习惯,很变扭

我不懂 现在完成时I have had trouble with cars ...和汽车发生了摩擦These have not had any effect.没有任何效果以上2句难理解.我只能理解：I have done my hw.这样的句型,但have+ had trouble,总觉得不习惯,很变扭
我不懂 现在完成时
I have had trouble with cars ...和汽车发生了摩擦
These have not had any effect.没有任何效果
以上2句难理解.
我只能理解：I have done my hw.这样的句型,但have+ had trouble,总觉得不习惯,很变扭.

我不懂 现在完成时I have had trouble with cars ...和汽车发生了摩擦These have not had any effect.没有任何效果以上2句难理解.我只能理解：I have done my hw.这样的句型,但have+ had trouble,总觉得不习惯,很变扭
have trouble with本来就是一个动宾短语是有麻烦的意思,这是他原来的模样,此时的have作为一个及物动词.但如果把它变成一般现在完成时态的时候,要遵循完成时态的结构have/has+done,此时的done就是have trouble with中的have 变成过去分词had.所以最后的形式就是have+had troubie with...,第二句中的had也是have变过来的,是“有”的意思.
我在给你个例子,have dinner 是吃晚饭的意思,但如果把它变为一般现在完成时,就要把动词have变为过去分词had,所以变成have had dinner.

have/has done 就是动词的形式
比如 i have seen the book 我应经看了这本书
你说的 have had trouble 这是对的
就是后面加名词 i have had lunch 我吃了午饭
O(∩_∩)O我是这样理解的喽~
希望有所帮助噢~
还有 买本语法书吧~