Present participle; Past participle - quitting - quitted Present - quit - quit - quits - quit - quit - quit Past - quitted - quitted - quitted - quitted - quitted - quitted Future - will quit - will quit - will quit - will quit - will quit - will quit Present conditional - would quit - would quit - would quit - would quit - would quit - would quit Present Perfect - have quitted - have quitted - has quitted - have quitted - have quitted - have quitted Past Perfect - had quitted - had quitted - had quitted - had quitted - had quitted - had quitted Future Perfect - will have quitted - will have quitted - will have quitted - will have quitted - will have quitted - will have quitted Past conditional - would have quitted - would have quitted - would have quitted - would have quitted - would have quitted - would have quitted Imperative - - - quit - - - - - - - -