I may background you may background he may background we may background you may background they may background
V-ing form
I may be backgrounding you may be backgrounding he may be backgrounding we may be backgrounding you may be backgrounding they may be backgrounding
Perfect
I may have backgrounded you may have backgrounded he may have backgrounded we may have backgrounded you may have backgrounded they may have backgrounded
V-ing perfect
I may have been backgrounding you may have been backgrounding he may have been backgrounding we may have been backgrounding you may have been backgrounding they may have been backgrounding
Negation
Simple form
I mayn't background you mayn't background he mayn't background we mayn't background you mayn't background they mayn't background
V-ing form
I mayn't be backgrounding you mayn't be backgrounding he mayn't be backgrounding we mayn't be backgrounding you mayn't be backgrounding they mayn't be backgrounding
Perfect
I mayn't have backgrounded you mayn't have backgrounded he mayn't have backgrounded we mayn't have backgrounded you mayn't have backgrounded they mayn't have backgrounded
V-ing perfect
I mayn't have been backgrounding you mayn't have been backgrounding he mayn't have been backgrounding we mayn't have been backgrounding you mayn't have been backgrounding they mayn't have been backgrounding
Interrogative form
Simple form
may I background? may you background? may he background? may we background? may you background? may they background?
V-ing form
may I be backgrounding? may you be backgrounding? may he be backgrounding? may we be backgrounding? may you be backgrounding? may they be backgrounding?
Perfect
may I have backgrounded? may you have backgrounded? may he have backgrounded? may we have backgrounded? may you have backgrounded? may they have backgrounded?
V-ing perfect
may I have been backgrounding? may you have been backgrounding? may he have been backgrounding? may we have been backgrounding? may you have been backgrounding? may they have been backgrounding?
Interro-negative form
Simple form
mayn't I background? mayn't you background? mayn't he background? mayn't we background? mayn't you background? mayn't they background?
V-ing form
mayn't I be backgrounding? mayn't you be backgrounding? mayn't he be backgrounding? mayn't we be backgrounding? mayn't you be backgrounding? mayn't they be backgrounding?
Perfect
mayn't I have backgrounded? mayn't you have backgrounded? mayn't he have backgrounded? mayn't we have backgrounded? mayn't you have backgrounded? mayn't they have backgrounded?
V-ing perfect
mayn't I have been backgrounding? mayn't you have been backgrounding? mayn't he have been backgrounding? mayn't we have been backgrounding? mayn't you have been backgrounding? mayn't they have been backgrounding?