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