Present participle; Past participle - flashing - flashed Present - flash - flash - flashes - flash - flash - flash Past - flashed - flashed - flashed - flashed - flashed - flashed Future - will flash - will flash - will flash - will flash - will flash - will flash Present conditional - would flash - would flash - would flash - would flash - would flash - would flash Present Perfect - have flashed - have flashed - has flashed - have flashed - have flashed - have flashed Past Perfect - had flashed - had flashed - had flashed - had flashed - had flashed - had flashed Future Perfect - will have flashed - will have flashed - will have flashed - will have flashed - will have flashed - will have flashed Past conditional - would have flashed - would have flashed - would have flashed - would have flashed - would have flashed - would have flashed Imperative - - - flash - - - - - - - -