I may rebuff you may rebuff he may rebuff we may rebuff you may rebuff they may rebuff
V-ing form
I may be rebuffing you may be rebuffing he may be rebuffing we may be rebuffing you may be rebuffing they may be rebuffing
Perfect
I may have rebuffed you may have rebuffed he 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 he 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 he 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 he 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 he 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 he 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 he rebuff? may we rebuff? may you rebuff? may they rebuff?
V-ing form
may I be rebuffing? may you be rebuffing? may he be rebuffing? may we be rebuffing? may you be rebuffing? may they be rebuffing?
Perfect
may I have rebuffed? may you have rebuffed? may he 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 he 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 he 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 he 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 he 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 he have been rebuffing? mayn't we have been rebuffing? mayn't you have been rebuffing? mayn't they have been rebuffing?