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 must not suppose you must not suppose he must not suppose we must not suppose you must not suppose they must not suppose	I must not be supposing you must not be supposing he must not be supposing we must not be supposing you must not be supposing they must not be supposing
Perfect	V-ing perfect
I must not have supposed you must not have supposed he must not have supposed we must not have supposed you must not have supposed they must not have supposed	I must not have been supposing you must not have been supposing he must not have been supposing we must not have been supposing you must not have been supposing they must not 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
must I not suppose? must you not suppose? must he not suppose? must we not suppose? must you not suppose? must they not suppose?	must I not be supposing? must you not be supposing? must he not be supposing? must we not be supposing? must you not be supposing? must they not be supposing?
Perfect	V-ing perfect
must I not have supposed? must you not have supposed? must he not have supposed? must we not have supposed? must you not have supposed? must they not have supposed?	must I not have been supposing? must you not have been supposing? must he not have been supposing? must we not have been supposing? must you not have been supposing? must they not have been supposing?