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