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