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