Present participle; Past participle - gibbering - gibbered Present - gibber - gibber - gibbers - gibber - gibber - gibber Past - gibbered - gibbered - gibbered - gibbered - gibbered - gibbered Future - will gibber - will gibber - will gibber - will gibber - will gibber - will gibber Present conditional - would gibber - would gibber - would gibber - would gibber - would gibber - would gibber Present Perfect - have gibbered - have gibbered - has gibbered - have gibbered - have gibbered - have gibbered Past Perfect - had gibbered - had gibbered - had gibbered - had gibbered - had gibbered - had gibbered Future Perfect - will have gibbered - will have gibbered - will have gibbered - will have gibbered - will have gibbered - will have gibbered Past conditional - would have gibbered - would have gibbered - would have gibbered - would have gibbered - would have gibbered - would have gibbered Imperative - - - gibber - - - - - - - -