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