人称代词与be动词的缩写读法有不同，还有助动词和not的缩写读音也不同。

例如:

I am ＝I'm

You are ＝You're

He is = He's

She is = She's

It is = It's

We are = We're

They are = They're

do not = don't

does not = doesn't

did not = didn't

will not = won't

have not = haven't

has not = hasn't

had not = hadn't

没有，读法是一样的，缩写只是为了写的方便 如please缩写成PLS不需要