还是我this is the pen used by me 再问一个 在么?I saw her clean the classroom.这个是不定式 I saw her cleaning the classroom.这个现在分词 能否用 过去分词 代替过去 I saw her cleaned the classroom` 效果和I saw her clean

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还是我thisisthepenusedbyme再问一个在么?Isawhercleantheclassroom.这个是不定式Isawhercleaningtheclassroom.这个现在分词能否用过去

还是我this is the pen used by me 再问一个 在么?I saw her clean the classroom.这个是不定式 I saw her cleaning the classroom.这个现在分词 能否用 过去分词 代替过去 I saw her cleaned the classroom` 效果和I saw her clean
还是我this is the pen used by me 再问一个 在么?
I saw her clean the classroom.这个是不定式 I saw her cleaning the classroom.这个现在分词 能否用 过去分词 代替过去 I saw her cleaned the classroom` 效果和I saw her clean the classroom 效果是否一样·谢谢
是否等同于I saw her clean the classroom 等于I saw her cleaned the classroom 等于 从句i saw her who cleaned the classroom.那 i saw a man work in the garden.= i saw a man worked i nthe garden i saw a man who was working in the garden 是否等同于i saw a man worked in the garden

还是我this is the pen used by me 再问一个 在么?I saw her clean the classroom.这个是不定式 I saw her cleaning the classroom.这个现在分词 能否用 过去分词 代替过去 I saw her cleaned the classroom` 效果和I saw her clean
see somebody do something 或者see somebody doing something.这是固定搭配.不用加to.
I saw her clean the classroom和I saw her cleaning the classroom都着重于她清洁这个行为动作.
i saw her who cleaned the classroom着重于我看到她这个人,而这个人刚好是清洁教室的那个人.
i saw a man work in the garden.觉得这个语法好像不对.但不知道为什么不对.如果改成i saw a man working in the garden就可以.
i saw a man worked in the garden觉得是对的,但不确定.是说我看见了一个男人在花园工作,而且讲的是在过去发生的事.还是觉得i saw a man working in the garden比较对.
i saw a man who was working in the garden 和i saw a man worked in the garden应该是一样,不过同上,觉得i saw a man who was working in the garden或者i saw a man working in the garden比较对.

只有 saw her clean the classroom 没有see her cleaned the classroom , see sb do sth 或 see sb doing sth 这是固定搭配 不能改的

不一样，-ed 表示干完了， to do 表示将要干什么

this the the pen,the pen is nice . This is pen.how much is the pen 这支钢笔是红色的.英语到底是This pen is red.还是The pen is red. This is his pen,The pen b___ to him This is my a pen?对还是This is a my pen?对This is my pen？ What is this 是This is a pen.还是.It is a pen?为什么? This is a pencil and a pen还是This are a pencil and a pen,二楼说的也许对，但我只问用IS还是ARE what is that in English?是It is a pen还是This si a pen还是That is a pen ①This the pen is mine.( ) ②This pen is mine.( ) 嘻嘻…… this is the same kind of pen（ ）和我昨天丢失的一样 This pen is broken.(同义句改写)Something is ( ) ( ) this pen.急五份内后我下线! this is our pen---------------- This pen is beautiful? This pen is yours This is not her pen.()(her) is on the desk This is( )good pen ( )color of theWis biack This is Jim.His pen is the red.改错 have u seen a pen1.Have u seen a pen i left it here this morning. Is it____black one?I think I saw it somewhere. the 还是a 为什么呢 2.____fire broke out last night.They managed to put out ____first soon.A the the B the a C a the D / the how