ASL sign for: before

During the period of time preceding (a particular event, date, or time); the opposite of AFTER.

Note: this sign BEFORE doesn't apply to many English sentences. Use the conjunction FINISH grammar instead when fit.

In the past.

Long before.

ASL writing for LONG BEFORE

ASL written for "long before".

Hmm, no words found now but, hey, it doesn't mean there is no expression for this concept in ASL.