Present participle; Past participle - bobsleighing - bobsleighed Present - bobsleigh - bobsleigh - bobsleighs - bobsleigh - bobsleigh - bobsleigh Past - bobsleighed - bobsleighed - bobsleighed - bobsleighed - bobsleighed - bobsleighed Future - will bobsleigh - will bobsleigh - will bobsleigh - will bobsleigh - will bobsleigh - will bobsleigh Present conditional - would bobsleigh - would bobsleigh - would bobsleigh - would bobsleigh - would bobsleigh - would bobsleigh Present Perfect - have bobsleighed - have bobsleighed - has bobsleighed - have bobsleighed - have bobsleighed - have bobsleighed Past Perfect - had bobsleighed - had bobsleighed - had bobsleighed - had bobsleighed - had bobsleighed - had bobsleighed Future Perfect - will have bobsleighed - will have bobsleighed - will have bobsleighed - will have bobsleighed - will have bobsleighed - will have bobsleighed Past conditional - would have bobsleighed - would have bobsleighed - would have bobsleighed - would have bobsleighed - would have bobsleighed - would have bobsleighed Imperative - - - bobsleigh - - - - - - - -