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