Present participle; Past participle - inventing - invented Present - invent - invent - invents - invent - invent - invent Past - invented - invented - invented - invented - invented - invented Future - will invent - will invent - will invent - will invent - will invent - will invent Present conditional - would invent - would invent - would invent - would invent - would invent - would invent Present Perfect - have invented - have invented - has invented - have invented - have invented - have invented Past Perfect - had invented - had invented - had invented - had invented - had invented - had invented Future Perfect - will have invented - will have invented - will have invented - will have invented - will have invented - will have invented Past conditional - would have invented - would have invented - would have invented - would have invented - would have invented - would have invented Imperative - - - invent - - - - - - - -