Present participle; Past participle - rethinking - rethought Present - rethink - rethink - rethinks - rethink - rethink - rethink Past - rethought - rethought - rethought - rethought - rethought - rethought Future - will rethink - will rethink - will rethink - will rethink - will rethink - will rethink Present conditional - would rethink - would rethink - would rethink - would rethink - would rethink - would rethink Present Perfect - have rethought - have rethought - has rethought - have rethought - have rethought - have rethought Past Perfect - had rethought - had rethought - had rethought - had rethought - had rethought - had rethought Future Perfect - will have rethought - will have rethought - will have rethought - will have rethought - will have rethought - will have rethought Past conditional - would have rethought - would have rethought - would have rethought - would have rethought - would have rethought - would have rethought Imperative - - - rethink - - - - - - - -