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