Present participle; Past participle - fluctuating - fluctuated Present - fluctuate - fluctuate - fluctuates - fluctuate - fluctuate - fluctuate Past - fluctuated - fluctuated - fluctuated - fluctuated - fluctuated - fluctuated Future - will fluctuate - will fluctuate - will fluctuate - will fluctuate - will fluctuate - will fluctuate Present conditional - would fluctuate - would fluctuate - would fluctuate - would fluctuate - would fluctuate - would fluctuate Present Perfect - have fluctuated - have fluctuated - has fluctuated - have fluctuated - have fluctuated - have fluctuated Past Perfect - had fluctuated - had fluctuated - had fluctuated - had fluctuated - had fluctuated - had fluctuated Future Perfect - will have fluctuated - will have fluctuated - will have fluctuated - will have fluctuated - will have fluctuated - will have fluctuated Past conditional - would have fluctuated - would have fluctuated - would have fluctuated - would have fluctuated - would have fluctuated - would have fluctuated Imperative - - - fluctuate - - - - - - - -