I must assert you must assert she must assert we must assert you must assert they must assert
V-ing form
I must be asserting you must be asserting she must be asserting we must be asserting you must be asserting they must be asserting
Perfect
I must have asserted you must have asserted she must have asserted we must have asserted you must have asserted they must have asserted
V-ing perfect
I must have been asserting you must have been asserting she must have been asserting we must have been asserting you must have been asserting they must have been asserting
Negation
Simple form
I must not assert you must not assert she must not assert we must not assert you must not assert they must not assert
V-ing form
I must not be asserting you must not be asserting she must not be asserting we must not be asserting you must not be asserting they must not be asserting
Perfect
I must not have asserted you must not have asserted she must not have asserted we must not have asserted you must not have asserted they must not have asserted
V-ing perfect
I must not have been asserting you must not have been asserting she must not have been asserting we must not have been asserting you must not have been asserting they must not have been asserting
Interrogative form
Simple form
must I assert? must you assert? must she assert? must we assert? must you assert? must they assert?
V-ing form
must I be asserting? must you be asserting? must she be asserting? must we be asserting? must you be asserting? must they be asserting?
Perfect
must I have asserted? must you have asserted? must she have asserted? must we have asserted? must you have asserted? must they have asserted?
V-ing perfect
must I have been asserting? must you have been asserting? must she have been asserting? must we have been asserting? must you have been asserting? must they have been asserting?
Interro-negative form
Simple form
must I not assert? must you not assert? must she not assert? must we not assert? must you not assert? must they not assert?
V-ing form
must I not be asserting? must you not be asserting? must she not be asserting? must we not be asserting? must you not be asserting? must they not be asserting?
Perfect
must I not have asserted? must you not have asserted? must she not have asserted? must we not have asserted? must you not have asserted? must they not have asserted?
V-ing perfect
must I not have been asserting? must you not have been asserting? must she not have been asserting? must we not have been asserting? must you not have been asserting? must they not have been asserting?