Present participle; Past participle - cooperating - cooperated Present - cooperate - cooperate - cooperates - cooperate - cooperate - cooperate Past - cooperated - cooperated - cooperated - cooperated - cooperated - cooperated Future - will cooperate - will cooperate - will cooperate - will cooperate - will cooperate - will cooperate Present conditional - would cooperate - would cooperate - would cooperate - would cooperate - would cooperate - would cooperate Present Perfect - have cooperated - have cooperated - has cooperated - have cooperated - have cooperated - have cooperated Past Perfect - had cooperated - had cooperated - had cooperated - had cooperated - had cooperated - had cooperated Future Perfect - will have cooperated - will have cooperated - will have cooperated - will have cooperated - will have cooperated - will have cooperated Past conditional - would have cooperated - would have cooperated - would have cooperated - would have cooperated - would have cooperated - would have cooperated Imperative - - - cooperate - - - - - - - -