English verb conjugation
MUST PROPOUND

Regular verb: propound - propounded - propounded

Affirmation

Simple form	V-ing form
I must propound you must propound she must propound we must propound you must propound they must propound	I must be propounding you must be propounding she must be propounding we must be propounding you must be propounding they must be propounding
Perfect	V-ing perfect
I must have propounded you must have propounded she must have propounded we must have propounded you must have propounded they must have propounded	I must have been propounding you must have been propounding she must have been propounding we must have been propounding you must have been propounding they must have been propounding

Negation

Simple form	V-ing form
I must not propound you must not propound she must not propound we must not propound you must not propound they must not propound	I must not be propounding you must not be propounding she must not be propounding we must not be propounding you must not be propounding they must not be propounding
Perfect	V-ing perfect
I must not have propounded you must not have propounded she must not have propounded we must not have propounded you must not have propounded they must not have propounded	I must not have been propounding you must not have been propounding she must not have been propounding we must not have been propounding you must not have been propounding they must not have been propounding

Interrogative form

Simple form	V-ing form
must I propound? must you propound? must she propound? must we propound? must you propound? must they propound?	must I be propounding? must you be propounding? must she be propounding? must we be propounding? must you be propounding? must they be propounding?
Perfect	V-ing perfect
must I have propounded? must you have propounded? must she have propounded? must we have propounded? must you have propounded? must they have propounded?	must I have been propounding? must you have been propounding? must she have been propounding? must we have been propounding? must you have been propounding? must they have been propounding?

Interro-negative form

Simple form	V-ing form
must I not propound? must you not propound? must she not propound? must we not propound? must you not propound? must they not propound?	must I not be propounding? must you not be propounding? must she not be propounding? must we not be propounding? must you not be propounding? must they not be propounding?
Perfect	V-ing perfect
must I not have propounded? must you not have propounded? must she not have propounded? must we not have propounded? must you not have propounded? must they not have propounded?	must I not have been propounding? must you not have been propounding? must she not have been propounding? must we not have been propounding? must you not have been propounding? must they not have been propounding?