Present participle; Past participle - changing - changed Present - change - change - changes - change - change - change Past - changed - changed - changed - changed - changed - changed Future - will change - will change - will change - will change - will change - will change Present conditional - would change - would change - would change - would change - would change - would change Present Perfect - have changed - have changed - has changed - have changed - have changed - have changed Past Perfect - had changed - had changed - had changed - had changed - had changed - had changed Future Perfect - will have changed - will have changed - will have changed - will have changed - will have changed - will have changed Past conditional - would have changed - would have changed - would have changed - would have changed - would have changed - would have changed Imperative - - - change - - - - - - - -