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