Front

back up

Back

to support

Front

bail out

Back

assist someone in a difficult situation, often financial

Front

bank on

Back

to depend on

Front

be after

Back

want, try again, chase

Front

be becoming

Back

to suit, favor in appearance

Front

be behind

Back

to be late, to have a lot of work to do

Front

be better off

Back

to be in a better situation, if or after something happens.