Present participle; Past participle - screwing - screwed Present - screw - screw - screws - screw - screw - screw Past - screwed - screwed - screwed - screwed - screwed - screwed Future - will screw - will screw - will screw - will screw - will screw - will screw Present conditional - would screw - would screw - would screw - would screw - would screw - would screw Present Perfect - have screwed - have screwed - has screwed - have screwed - have screwed - have screwed Past Perfect - had screwed - had screwed - had screwed - had screwed - had screwed - had screwed Future Perfect - will have screwed - will have screwed - will have screwed - will have screwed - will have screwed - will have screwed Past conditional - would have screwed - would have screwed - would have screwed - would have screwed - would have screwed - would have screwed Imperative - - - screw - - - - - - - -