出现有时可以简写和缩写和简称为现，有时不可以简写和缩写和简称为现是吗？ 肯定回答不能缩写吗
이었습니다 能不能缩写成 였습니다
都表示过去
一般疑问句的肯定回答里能不能出现缩写？
不能。肯定回答只会出现诸如：Yes, I am.
Yes, they have. Yes, she does. Yes, he can. 等形式。
英语缩写形式
I am = I'm
It is = It's
It has = It's
They have = They've
do not = don't
does not = doesn't
一 月：January 简写:Jan.
二 月：February 简写:Feb.
三 月：March 简写:Mar.
四 月：April 简写:Apr.
五 月：May 简写:May.
六 月：June 简写:Jun.
七 月：July 简写:Jul.
八 月：August 简写:Aug.
九 月：September 简写:Sep.
十 月：October 简写:Oct.
十一月：November 简写:Nov.
十二月：December 简写:Dec.
什么时候不可以缩写想we'll it's
we will = we'll
it is = it's
只要后面有跟内容（we will + 动词 或 it is + 表语/宾语/实际主语）的情况下，都可以缩写，但当后面没有跟内容时（如回答），则不能缩写。
如：
可以缩写的情况：
We will go shopping this weekend = We'll go shopping this weekend.
It is a pen = It's a pen；或
It is Tom who asked the question = It's Tom who asked the question.
不能缩写：
Is it a pen? Yes, it is. 回答不能写成 Yes, it's.
Will you go shopping this weekend? Yes, we will. 不能写成 Yes, we'll.
The more friends we make, the happier we'll be.是对的。