缩写发音规则
have - [hæv] 变 [əv]
could have = couldəv
would have = wouldəv
should have= shouldəv

有的时候甚至连[v]也可以省略掉，直接读[ə]
could have = coulda
would have = woulda
should have= shoulda
(等号右边这些词中的字母a发ə的音)

否定的情况下也是同理：
couldn't have = couldn'təv = couldn'tə
wouldn't have = wouldn'təv = wouldn'tə
shouldn't have = shouldn'təv = shouldn'tə

of - [əv] 变 [ə]
kind of = kinda
sort of = sorta
lot of = lotta
(等号右边这些词中的字母a发ə的音)

want to = wanna [ˈwɑ:nə]
going to = gonna [ˈgɔ:nə]

例句：
我本来是想去厦门的，但是我没有钱。
初始版 - I could have traveled to Xiamen but I have no money.
进阶版 - I couldəv traveled to Xiamen but I have no money.

我有点儿喜欢她。
初始版 - I kind of have a crush on her.
进阶版 - I kində have a crush on her.

嘿你想不想去逛商场？
初始版 - Hey, do you want to go to the mall?
进阶版 - Hey, you wannə go to the mall?

其他缩写发音方式：