I may barbecue you may barbecue he may barbecue we may barbecue you may barbecue they may barbecue
V-ing form
I may be barbecuing you may be barbecuing he may be barbecuing we may be barbecuing you may be barbecuing they may be barbecuing
Perfect
I may have barbecued you may have barbecued he may have barbecued we may have barbecued you may have barbecued they may have barbecued
V-ing perfect
I may have been barbecuing you may have been barbecuing he may have been barbecuing we may have been barbecuing you may have been barbecuing they may have been barbecuing
Negation
Simple form
I mayn't barbecue you mayn't barbecue he mayn't barbecue we mayn't barbecue you mayn't barbecue they mayn't barbecue
V-ing form
I mayn't be barbecuing you mayn't be barbecuing he mayn't be barbecuing we mayn't be barbecuing you mayn't be barbecuing they mayn't be barbecuing
Perfect
I mayn't have barbecued you mayn't have barbecued he mayn't have barbecued we mayn't have barbecued you mayn't have barbecued they mayn't have barbecued
V-ing perfect
I mayn't have been barbecuing you mayn't have been barbecuing he mayn't have been barbecuing we mayn't have been barbecuing you mayn't have been barbecuing they mayn't have been barbecuing
Interrogative form
Simple form
may I barbecue? may you barbecue? may he barbecue? may we barbecue? may you barbecue? may they barbecue?
V-ing form
may I be barbecuing? may you be barbecuing? may he be barbecuing? may we be barbecuing? may you be barbecuing? may they be barbecuing?
Perfect
may I have barbecued? may you have barbecued? may he have barbecued? may we have barbecued? may you have barbecued? may they have barbecued?
V-ing perfect
may I have been barbecuing? may you have been barbecuing? may he have been barbecuing? may we have been barbecuing? may you have been barbecuing? may they have been barbecuing?
Interro-negative form
Simple form
mayn't I barbecue? mayn't you barbecue? mayn't he barbecue? mayn't we barbecue? mayn't you barbecue? mayn't they barbecue?
V-ing form
mayn't I be barbecuing? mayn't you be barbecuing? mayn't he be barbecuing? mayn't we be barbecuing? mayn't you be barbecuing? mayn't they be barbecuing?
Perfect
mayn't I have barbecued? mayn't you have barbecued? mayn't he have barbecued? mayn't we have barbecued? mayn't you have barbecued? mayn't they have barbecued?
V-ing perfect
mayn't I have been barbecuing? mayn't you have been barbecuing? mayn't he have been barbecuing? mayn't we have been barbecuing? mayn't you have been barbecuing? mayn't they have been barbecuing?