Present participle; Past participle - tripping - tripped Present - trip - trip - trips - trip - trip - trip Past - tripped - tripped - tripped - tripped - tripped - tripped Future - will trip - will trip - will trip - will trip - will trip - will trip Present conditional - would trip - would trip - would trip - would trip - would trip - would trip Present Perfect - have tripped - have tripped - has tripped - have tripped - have tripped - have tripped Past Perfect - had tripped - had tripped - had tripped - had tripped - had tripped - had tripped Future Perfect - will have tripped - will have tripped - will have tripped - will have tripped - will have tripped - will have tripped Past conditional - would have tripped - would have tripped - would have tripped - would have tripped - would have tripped - would have tripped Imperative - - - trip - - - - - - - -