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