Present participle; Past participle - scaling - scaled Present - scale - scale - scales - scale - scale - scale Past - scaled - scaled - scaled - scaled - scaled - scaled Future - will scale - will scale - will scale - will scale - will scale - will scale Present conditional - would scale - would scale - would scale - would scale - would scale - would scale Present Perfect - have scaled - have scaled - has scaled - have scaled - have scaled - have scaled Past Perfect - had scaled - had scaled - had scaled - had scaled - had scaled - had scaled Future Perfect - will have scaled - will have scaled - will have scaled - will have scaled - will have scaled - will have scaled Past conditional - would have scaled - would have scaled - would have scaled - would have scaled - would have scaled - would have scaled Imperative - - - scale - - - - - - - -