Present participle; Past participle - behaving - behaved Present - behave - behave - behaves - behave - behave - behave Past - behaved - behaved - behaved - behaved - behaved - behaved Future - will behave - will behave - will behave - will behave - will behave - will behave Present conditional - would behave - would behave - would behave - would behave - would behave - would behave Present Perfect - have behaved - have behaved - has behaved - have behaved - have behaved - have behaved Past Perfect - had behaved - had behaved - had behaved - had behaved - had behaved - had behaved Future Perfect - will have behaved - will have behaved - will have behaved - will have behaved - will have behaved - will have behaved Past conditional - would have behaved - would have behaved - would have behaved - would have behaved - would have behaved - would have behaved Imperative - - - behave - - - - - - - -