I may skate you may skate she may skate we may skate you may skate they may skate
V-ing form
I may be skating you may be skating she may be skating we may be skating you may be skating they may be skating
Perfect
I may have skated you may have skated she may have skated we may have skated you may have skated they may have skated
V-ing perfect
I may have been skating you may have been skating she may have been skating we may have been skating you may have been skating they may have been skating
Negation
Simple form
I mayn't skate you mayn't skate she mayn't skate we mayn't skate you mayn't skate they mayn't skate
V-ing form
I mayn't be skating you mayn't be skating she mayn't be skating we mayn't be skating you mayn't be skating they mayn't be skating
Perfect
I mayn't have skated you mayn't have skated she mayn't have skated we mayn't have skated you mayn't have skated they mayn't have skated
V-ing perfect
I mayn't have been skating you mayn't have been skating she mayn't have been skating we mayn't have been skating you mayn't have been skating they mayn't have been skating
Interrogative form
Simple form
may I skate? may you skate? may she skate? may we skate? may you skate? may they skate?
V-ing form
may I be skating? may you be skating? may she be skating? may we be skating? may you be skating? may they be skating?
Perfect
may I have skated? may you have skated? may she have skated? may we have skated? may you have skated? may they have skated?
V-ing perfect
may I have been skating? may you have been skating? may she have been skating? may we have been skating? may you have been skating? may they have been skating?
Interro-negative form
Simple form
mayn't I skate? mayn't you skate? mayn't she skate? mayn't we skate? mayn't you skate? mayn't they skate?
V-ing form
mayn't I be skating? mayn't you be skating? mayn't she be skating? mayn't we be skating? mayn't you be skating? mayn't they be skating?
Perfect
mayn't I have skated? mayn't you have skated? mayn't she have skated? mayn't we have skated? mayn't you have skated? mayn't they have skated?
V-ing perfect
mayn't I have been skating? mayn't you have been skating? mayn't she have been skating? mayn't we have been skating? mayn't you have been skating? mayn't they have been skating?