Present participle; Past participle - ending - ended Present - end - end - ends - end - end - end Past - ended - ended - ended - ended - ended - ended Future - will end - will end - will end - will end - will end - will end Present conditional - would end - would end - would end - would end - would end - would end Present Perfect - have ended - have ended - has ended - have ended - have ended - have ended Past Perfect - had ended - had ended - had ended - had ended - had ended - had ended Future Perfect - will have ended - will have ended - will have ended - will have ended - will have ended - will have ended Past conditional - would have ended - would have ended - would have ended - would have ended - would have ended - would have ended Imperative - - - end - - - - - - - -