P3R1E1V4E1R1B3S1
15 points
PREVERBS is validvalid
PREVERB, a prefix or particle preceding the root of a verb [n]
PREVERB, a particle or prefix which precedes a verb [n]
PREVERB, a prefix or particle preceding the root of a verb [n]
PREVERB, a particle or prefix which precedes a verb [n]