帮我把这几个句子改成被动语态.Someone made it Germany in 1861.We keep our clavichord in the living room.My grandfather bought the instrament many years ago.Recently a visitor damaged it.Broke two of the strings.This shocked my father.Now he doesn't allow us to touch it.A kind of my father's is repairing it.然后再帮我解说一下各种时态的被动语态的组成 比如说一般现在时是be+过去分词.

It was made by someone Germany in 1861.
Our clavichord is kept in the living room by us.
The instrament was bought many years ago by my grandfather .
Recently it was damageda by a visitor.
Two of the strings were broke.
My father was shocked by this.
Now we were not allowed to touch it by him.
It is repaired i by a kind of my father's .

The Germany was made in 1861 by someone
Our clavichord is kept in the libving room by us
The instrament was bought many years ago by my grandfather
It was damaged a visitor recently
The two of the strings were broken
My father was shocked by this
We don't be allowed to touch it by him now
It is being repaired by a kind of my father's
一般现在时 be(is are）+过去分词
一般过去时 be(was were)+过去分词
一般将来时 will be+过去分词
现在进行时 being +过去分词。
过去进行时 be(was were)+过去分词。
现在完成时 (have has)+been+过去分词。
过去完成时 had+been+过去分词。
现在完成进行时 (have has)+been+being+过去分词
过去完成进行时 had+been+being+过去分词

It was made Germany by someone in 1861.Our Clavichord is kept in the living room by us.The instrament was bought by my grandfather many years ago.It was damaged by a visitor recently.Two of the string...

It was made by someone in Germany in 1861.
Our clavichord is kept by us in the living room.
The instrument was bought by my grandfather many years ago.
Recently it was damaged by a visitor.
Two of the strings were broken.
Now we are not allowed by him to touch it.
It is being repaired by a kind of my father's.