English verb conjugation
MUST PRESUPPOSE

Regular verb: presuppose - presupposed - presupposed

Affirmation

Simple form	V-ing form
I must presuppose you must presuppose he must presuppose we must presuppose you must presuppose they must presuppose	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	V-ing 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	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	V-ing 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	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	V-ing 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	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	V-ing form
must I presuppose? must you presuppose? must he presuppose? must we presuppose? must you presuppose? must they presuppose?	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	V-ing 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?	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	V-ing 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?	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	V-ing 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?	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?