C3O1O1P3E1R1A1T1I1N1G2
16 points
COOPERATING is validvalid
COOPERATE, [v COOPERATED, COOPERATES, COOPERATING] : COOPERATION [v]
COOPERATE, to work together [v]
COOPERATE, [v COOPERATED, COOPERATES, COOPERATING] : COOPERATION [v]
COOPERATE, to work together [v]