be useful, serve / be valid, be usable (e.g. a coupon at a cash register)

geta: a kind of wooden clog with at least one, more commonly two, stilts or “teeth”

be cut off, break, snap, burst, collapse / be cut, be injured, become fissured / break off, be interrupted / cut or sever connection with / run out, expire, terminate

be able to do, be able to finish

Same as above.

cannot completely... (because it's excessive)

to run out of breath

to break, pause, cease; to be interrupted

be cut finely / be scattered into tiny bits / break off, snap off

(idiomatic) to be sharp; to be keen; to be on the ball; to have a mind like a steel trap; to be clever