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