Present participle; Past participle - flabbergasting - flabbergasted Present - flabbergast - flabbergast - flabbergasts - flabbergast - flabbergast - flabbergast Past - flabbergasted - flabbergasted - flabbergasted - flabbergasted - flabbergasted - flabbergasted Future - will flabbergast - will flabbergast - will flabbergast - will flabbergast - will flabbergast - will flabbergast Present conditional - would flabbergast - would flabbergast - would flabbergast - would flabbergast - would flabbergast - would flabbergast Present Perfect - have flabbergasted - have flabbergasted - has flabbergasted - have flabbergasted - have flabbergasted - have flabbergasted Past Perfect - had flabbergasted - had flabbergasted - had flabbergasted - had flabbergasted - had flabbergasted - had flabbergasted Future Perfect - will have flabbergasted - will have flabbergasted - will have flabbergasted - will have flabbergasted - will have flabbergasted - will have flabbergasted Past conditional - would have flabbergasted - would have flabbergasted - would have flabbergasted - would have flabbergasted - would have flabbergasted - would have flabbergasted Imperative - - - flabbergast - - - - - - - -