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