Present participle; Past participle - accelerating - accelerated Present - accelerate - accelerate - accelerates - accelerate - accelerate - accelerate Past - accelerated - accelerated - accelerated - accelerated - accelerated - accelerated Future - will accelerate - will accelerate - will accelerate - will accelerate - will accelerate - will accelerate Present conditional - would accelerate - would accelerate - would accelerate - would accelerate - would accelerate - would accelerate Present Perfect - have accelerated - have accelerated - has accelerated - have accelerated - have accelerated - have accelerated Past Perfect - had accelerated - had accelerated - had accelerated - had accelerated - had accelerated - had accelerated Future Perfect - will have accelerated - will have accelerated - will have accelerated - will have accelerated - will have accelerated - will have accelerated Past conditional - would have accelerated - would have accelerated - would have accelerated - would have accelerated - would have accelerated - would have accelerated Imperative - - - accelerate - - - - - - - -