Present participle; Past participle - subtracting - subtracted Present - subtract - subtract - subtracts - subtract - subtract - subtract Past - subtracted - subtracted - subtracted - subtracted - subtracted - subtracted Future - will subtract - will subtract - will subtract - will subtract - will subtract - will subtract Present conditional - would subtract - would subtract - would subtract - would subtract - would subtract - would subtract Present Perfect - have subtracted - have subtracted - has subtracted - have subtracted - have subtracted - have subtracted Past Perfect - had subtracted - had subtracted - had subtracted - had subtracted - had subtracted - had subtracted Future Perfect - will have subtracted - will have subtracted - will have subtracted - will have subtracted - will have subtracted - will have subtracted Past conditional - would have subtracted - would have subtracted - would have subtracted - would have subtracted - would have subtracted - would have subtracted Imperative - - - subtract - - - - - - - -