Present participle; Past participle - mushrooming - mushroomed Present - mushroom - mushroom - mushrooms - mushroom - mushroom - mushroom Past - mushroomed - mushroomed - mushroomed - mushroomed - mushroomed - mushroomed Future - will mushroom - will mushroom - will mushroom - will mushroom - will mushroom - will mushroom Present conditional - would mushroom - would mushroom - would mushroom - would mushroom - would mushroom - would mushroom Present Perfect - have mushroomed - have mushroomed - has mushroomed - have mushroomed - have mushroomed - have mushroomed Past Perfect - had mushroomed - had mushroomed - had mushroomed - had mushroomed - had mushroomed - had mushroomed Future Perfect - will have mushroomed - will have mushroomed - will have mushroomed - will have mushroomed - will have mushroomed - will have mushroomed Past conditional - would have mushroomed - would have mushroomed - would have mushroomed - would have mushroomed - would have mushroomed - would have mushroomed Imperative - - - mushroom - - - - - - - -