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 mayn't calendar you mayn't calendar he mayn't calendar we mayn't calendar you mayn't calendar they mayn't calendar
V-ing form
I mayn't be calendaring you mayn't be calendaring he mayn't be calendaring we mayn't be calendaring you mayn't be calendaring they mayn't be calendaring
Perfect
I mayn't have calendared you mayn't have calendared he mayn't have calendared we mayn't have calendared you mayn't have calendared they mayn't have calendared
V-ing perfect
I mayn't have been calendaring you mayn't have been calendaring he mayn't have been calendaring we mayn't have been calendaring you mayn't have been calendaring they mayn't 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
mayn't I calendar? mayn't you calendar? mayn't he calendar? mayn't we calendar? mayn't you calendar? mayn't they calendar?
V-ing form
mayn't I be calendaring? mayn't you be calendaring? mayn't he be calendaring? mayn't we be calendaring? mayn't you be calendaring? mayn't they be calendaring?
Perfect
mayn't I have calendared? mayn't you have calendared? mayn't he have calendared? mayn't we have calendared? mayn't you have calendared? mayn't they have calendared?
V-ing perfect
mayn't I have been calendaring? mayn't you have been calendaring? mayn't he have been calendaring? mayn't we have been calendaring? mayn't you have been calendaring? mayn't they have been calendaring?