Present participle; Past participle - demonstrating - demonstrated Present - demonstrate - demonstrate - demonstrates - demonstrate - demonstrate - demonstrate Past - demonstrated - demonstrated - demonstrated - demonstrated - demonstrated - demonstrated Future - will demonstrate - will demonstrate - will demonstrate - will demonstrate - will demonstrate - will demonstrate Present conditional - would demonstrate - would demonstrate - would demonstrate - would demonstrate - would demonstrate - would demonstrate Present Perfect - have demonstrated - have demonstrated - has demonstrated - have demonstrated - have demonstrated - have demonstrated Past Perfect - had demonstrated - had demonstrated - had demonstrated - had demonstrated - had demonstrated - had demonstrated Future Perfect - will have demonstrated - will have demonstrated - will have demonstrated - will have demonstrated - will have demonstrated - will have demonstrated Past conditional - would have demonstrated - would have demonstrated - would have demonstrated - would have demonstrated - would have demonstrated - would have demonstrated Imperative - - - demonstrate - - - - - - - -