Present participle; Past participle - skateboarding - skateboarded Present - skateboard - skateboard - skateboards - skateboard - skateboard - skateboard Past - skateboarded - skateboarded - skateboarded - skateboarded - skateboarded - skateboarded Future - will skateboard - will skateboard - will skateboard - will skateboard - will skateboard - will skateboard Present conditional - would skateboard - would skateboard - would skateboard - would skateboard - would skateboard - would skateboard Present Perfect - have skateboarded - have skateboarded - has skateboarded - have skateboarded - have skateboarded - have skateboarded Past Perfect - had skateboarded - had skateboarded - had skateboarded - had skateboarded - had skateboarded - had skateboarded Future Perfect - will have skateboarded - will have skateboarded - will have skateboarded - will have skateboarded - will have skateboarded - will have skateboarded Past conditional - would have skateboarded - would have skateboarded - would have skateboarded - would have skateboarded - would have skateboarded - would have skateboarded Imperative - - - skateboard - - - - - - - -