I may calendar you may calendar he may calendar we may calendar you may calendar they may calendar
V-ing form
I may be calendaring you may be calendaring he may be calendaring we may be calendaring you may be calendaring they may be calendaring
Perfect
I may have calendared you may have calendared he may have calendared we may have calendared you may have calendared they may have calendared
V-ing perfect
I may have been calendaring you may have been calendaring he may have been calendaring we may have been calendaring you may have been calendaring they may have been calendaring
Negation
Simple form
I may not calendar you may not calendar he may not calendar we may not calendar you may not calendar they may not calendar
V-ing form
I may not be calendaring you may not be calendaring he may not be calendaring we may not be calendaring you may not be calendaring they may not be calendaring
Perfect
I may not have calendared you may not have calendared he may not have calendared we may not have calendared you may not have calendared they may not have calendared
V-ing perfect
I may not have been calendaring you may not have been calendaring he may not have been calendaring we may not have been calendaring you may not have been calendaring they may not have been calendaring
Interrogative form
Simple form
may I calendar? may you calendar? may he calendar? may we calendar? may you calendar? may they calendar?
V-ing form
may I be calendaring? may you be calendaring? may he be calendaring? may we be calendaring? may you be calendaring? may they be calendaring?
Perfect
may I have calendared? may you have calendared? may he have calendared? may we have calendared? may you have calendared? may they have calendared?
V-ing perfect
may I have been calendaring? may you have been calendaring? may he have been calendaring? may we have been calendaring? may you have been calendaring? may they have been calendaring?
Interro-negative form
Simple form
may I not calendar? may you not calendar? may he not calendar? may we not calendar? may you not calendar? may they not calendar?
V-ing form
may I not be calendaring? may you not be calendaring? may he not be calendaring? may we not be calendaring? may you not be calendaring? may they not be calendaring?
Perfect
may I not have calendared? may you not have calendared? may he not have calendared? may we not have calendared? may you not have calendared? may they not have calendared?
V-ing perfect
may I not have been calendaring? may you not have been calendaring? may he not have been calendaring? may we not have been calendaring? may you not have been calendaring? may they not have been calendaring?