Because they were bad and were caught for doing something wrong :)
will be staying
You obtain it by staying in a pool too long or by staying outside too long
how long has he been in jail
No. She was never in jail.
People do not rot in jail . . . that is just a way of saying that they will be in jail for a long, long time.
Incarceration? Like in jail? No, its not a disability to be in jail be a long time.
He is not currently in jail
As long as there is an opprtunity to stay
Yes, the word "jail" has a long "a" sound. It is pronounced like "jay-ul."
Yes, the word "jail" has a short 'a' vowel sound, as in /dʒeɪl/.
He's still in jail.