English verb conjugation
MUST SUPPOSE

Regular verb: suppose - supposed - supposed

Affirmation

Simple form	V-ing form
I must suppose you must suppose he must suppose we must suppose you must suppose they must suppose	I must be supposing you must be supposing he must be supposing we must be supposing you must be supposing they must be supposing
Perfect	V-ing perfect
I must have supposed you must have supposed he must have supposed we must have supposed you must have supposed they must have supposed	I must have been supposing you must have been supposing he must have been supposing we must have been supposing you must have been supposing they must have been supposing

Negation

Simple form	V-ing form
I mustn't suppose you mustn't suppose he mustn't suppose we mustn't suppose you mustn't suppose they mustn't suppose	I mustn't be supposing you mustn't be supposing he mustn't be supposing we mustn't be supposing you mustn't be supposing they mustn't be supposing
Perfect	V-ing perfect
I mustn't have supposed you mustn't have supposed he mustn't have supposed we mustn't have supposed you mustn't have supposed they mustn't have supposed	I mustn't have been supposing you mustn't have been supposing he mustn't have been supposing we mustn't have been supposing you mustn't have been supposing they mustn't have been supposing

Interrogative form

Simple form	V-ing form
must I suppose? must you suppose? must he suppose? must we suppose? must you suppose? must they suppose?	must I be supposing? must you be supposing? must he be supposing? must we be supposing? must you be supposing? must they be supposing?
Perfect	V-ing perfect
must I have supposed? must you have supposed? must he have supposed? must we have supposed? must you have supposed? must they have supposed?	must I have been supposing? must you have been supposing? must he have been supposing? must we have been supposing? must you have been supposing? must they have been supposing?

Interro-negative form

Simple form	V-ing form
mustn't I suppose? mustn't you suppose? mustn't he suppose? mustn't we suppose? mustn't you suppose? mustn't they suppose?	mustn't I be supposing? mustn't you be supposing? mustn't he be supposing? mustn't we be supposing? mustn't you be supposing? mustn't they be supposing?
Perfect	V-ing perfect
mustn't I have supposed? mustn't you have supposed? mustn't he have supposed? mustn't we have supposed? mustn't you have supposed? mustn't they have supposed?	mustn't I have been supposing? mustn't you have been supposing? mustn't he have been supposing? mustn't we have been supposing? mustn't you have been supposing? mustn't they have been supposing?