Present participle; Past participle - calculating - calculated Present - calculate - calculate - calculates - calculate - calculate - calculate Past - calculated - calculated - calculated - calculated - calculated - calculated Future - will calculate - will calculate - will calculate - will calculate - will calculate - will calculate Present conditional - would calculate - would calculate - would calculate - would calculate - would calculate - would calculate Present Perfect - have calculated - have calculated - has calculated - have calculated - have calculated - have calculated Past Perfect - had calculated - had calculated - had calculated - had calculated - had calculated - had calculated Future Perfect - will have calculated - will have calculated - will have calculated - will have calculated - will have calculated - will have calculated Past conditional - would have calculated - would have calculated - would have calculated - would have calculated - would have calculated - would have calculated Imperative - - - calculate - - - - - - - -