Ain't is a contraction for "am not", "is not", "are not", "has not", and "have not"in the common English language vernacular. In some dialects ain't is also used as a contraction of "do not", "does not", and "did not".

1. She ain't going to the party tonight.
   她今晚不打算去參加派對(duì)。
2. I ain't seen that movie yet.
   我還沒看過那部電影。
3. Ain't nobody got time for that!
   沒人有時(shí)間做那個(gè)！
4. This ain't what I ordered!
   這不是我點(diǎn)的東西！