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