這是英語的一種縮寫形式，通常用於口語和非正式的書面語中。

根據不同情況，省略的字母不同。

常見的有what"s=what is 省略的是字母i，isn"t=is not，省略的是字母o，I"d=I would，省略字母oul。符號"省略的字母並不是完全一樣的。下面把常見的省略形式展現出來。

isn"t=is not

aren"t=are not

what"s=what is

I"m=I am

he"s=he is

she"s=she is

it"s=it is

you"re=you are

they"re=they are

I"d=I would

you"d better do= you had better do

I"ll=I will

don"t=do not

doesn"t=does not

didn"t=did not

haven"t=have not

hasn"t=has not

can"t=can not

won"t=will not

shouldn"t=should not

wasn"t=was not

mustn"t=must not