I may cab you may cab she may cab we may cab you may cab they may cab
V-ing form
I may be cabing you may be cabing she may be cabing we may be cabing you may be cabing they may be cabing
Perfect
I may have cabed you may have cabed she 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 she 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 she 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 she 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 she 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 she 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 she cab? may we cab? may you cab? may they cab?
V-ing form
may I be cabing? may you be cabing? may she be cabing? may we be cabing? may you be cabing? may they be cabing?
Perfect
may I have cabed? may you have cabed? may she 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 she 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 she 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 she 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 she 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 she have been cabing? mayn't we have been cabing? mayn't you have been cabing? mayn't they have been cabing?