Present participle; Past participle - exercising - exercised Present - exercise - exercise - exercises - exercise - exercise - exercise Past - exercised - exercised - exercised - exercised - exercised - exercised Future - will exercise - will exercise - will exercise - will exercise - will exercise - will exercise Present conditional - would exercise - would exercise - would exercise - would exercise - would exercise - would exercise Present Perfect - have exercised - have exercised - has exercised - have exercised - have exercised - have exercised Past Perfect - had exercised - had exercised - had exercised - had exercised - had exercised - had exercised Future Perfect - will have exercised - will have exercised - will have exercised - will have exercised - will have exercised - will have exercised Past conditional - would have exercised - would have exercised - would have exercised - would have exercised - would have exercised - would have exercised Imperative - - - exercise - - - - - - - -