Also see:
Past: "A while ago."
Also see:
Past: "A long time ago."
PAST:
The sign for "past" is
made by moving your dominant hand over your dominant shoulder. Your palm should face your body. The more emphasis you give the motion
and/or the larger movement you use indicates further into the past:
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"before"
"last" as in "last night"
previously
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Use to be...
A while back...
Back when...
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Once upon a time, long, long, ago...
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Hey man, that's ancient history!
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Note: If you mean "before" as in "before you do
that you should do this..." you should use the sign
PRIOR-before.