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