English verb conjugation
MUST IMPOUND

Regular verb: impound - impounded - impounded

Affirmation

Simple form	V-ing form
I must impound you must impound she must impound we must impound you must impound they must impound	I must be impounding you must be impounding she must be impounding we must be impounding you must be impounding they must be impounding
Perfect	V-ing perfect
I must have impounded you must have impounded she must have impounded we must have impounded you must have impounded they must have impounded	I must have been impounding you must have been impounding she must have been impounding we must have been impounding you must have been impounding they must have been impounding

Negation

Simple form	V-ing form
I must not impound you must not impound she must not impound we must not impound you must not impound they must not impound	I must not be impounding you must not be impounding she must not be impounding we must not be impounding you must not be impounding they must not be impounding
Perfect	V-ing perfect
I must not have impounded you must not have impounded she must not have impounded we must not have impounded you must not have impounded they must not have impounded	I must not have been impounding you must not have been impounding she must not have been impounding we must not have been impounding you must not have been impounding they must not have been impounding

Interrogative form

Simple form	V-ing form
must I impound? must you impound? must she impound? must we impound? must you impound? must they impound?	must I be impounding? must you be impounding? must she be impounding? must we be impounding? must you be impounding? must they be impounding?
Perfect	V-ing perfect
must I have impounded? must you have impounded? must she have impounded? must we have impounded? must you have impounded? must they have impounded?	must I have been impounding? must you have been impounding? must she have been impounding? must we have been impounding? must you have been impounding? must they have been impounding?

Interro-negative form

Simple form	V-ing form
must I not impound? must you not impound? must she not impound? must we not impound? must you not impound? must they not impound?	must I not be impounding? must you not be impounding? must she not be impounding? must we not be impounding? must you not be impounding? must they not be impounding?
Perfect	V-ing perfect
must I not have impounded? must you not have impounded? must she not have impounded? must we not have impounded? must you not have impounded? must they not have impounded?	must I not have been impounding? must you not have been impounding? must she not have been impounding? must we not have been impounding? must you not have been impounding? must they not have been impounding?