1be off
2be off caffeine
3be off to
4be on
5be on a diet
6be on business
7be on edge
8be on time
9be onto sth.
10be out of
11be out of earshot
12be out of one's mind
13be out of the office
14be overwhelmed with
15be particular about
16be prepared for
1be proficient on
2be ready to
3be relevant to
4be responsible for
5be seated
6be sensitive to
7be sick of
8be short of
9be slated of
10be sold out
11be stuck
12be suitable for
13be supposed to