Present participle; Past participle - calendaring - calendared Present - calendar - calendar - calendars - calendar - calendar - calendar Past - calendared - calendared - calendared - calendared - calendared - calendared Future - will calendar - will calendar - will calendar - will calendar - will calendar - will calendar Present conditional - would calendar - would calendar - would calendar - would calendar - would calendar - would calendar Present Perfect - have calendared - have calendared - has calendared - have calendared - have calendared - have calendared Past Perfect - had calendared - had calendared - had calendared - had calendared - had calendared - had calendared Future Perfect - will have calendared - will have calendared - will have calendared - will have calendared - will have calendared - will have calendared Past conditional - would have calendared - would have calendared - would have calendared - would have calendared - would have calendared - would have calendared Imperative - - - calendar - - - - - - - -