English verb conjugation
MUST HARRUMPH

Regular verb: harrumph - harrumphed - harrumphed

Affirmation

Simple form	V-ing form
I must harrumph you must harrumph he must harrumph we must harrumph you must harrumph they must harrumph	I must be harrumphing you must be harrumphing he must be harrumphing we must be harrumphing you must be harrumphing they must be harrumphing
Perfect	V-ing perfect
I must have harrumphed you must have harrumphed he must have harrumphed we must have harrumphed you must have harrumphed they must have harrumphed	I must have been harrumphing you must have been harrumphing he must have been harrumphing we must have been harrumphing you must have been harrumphing they must have been harrumphing

Negation

Simple form	V-ing form
I must not harrumph you must not harrumph he must not harrumph we must not harrumph you must not harrumph they must not harrumph	I must not be harrumphing you must not be harrumphing he must not be harrumphing we must not be harrumphing you must not be harrumphing they must not be harrumphing
Perfect	V-ing perfect
I must not have harrumphed you must not have harrumphed he must not have harrumphed we must not have harrumphed you must not have harrumphed they must not have harrumphed	I must not have been harrumphing you must not have been harrumphing he must not have been harrumphing we must not have been harrumphing you must not have been harrumphing they must not have been harrumphing

Interrogative form

Simple form	V-ing form
must I harrumph? must you harrumph? must he harrumph? must we harrumph? must you harrumph? must they harrumph?	must I be harrumphing? must you be harrumphing? must he be harrumphing? must we be harrumphing? must you be harrumphing? must they be harrumphing?
Perfect	V-ing perfect
must I have harrumphed? must you have harrumphed? must he have harrumphed? must we have harrumphed? must you have harrumphed? must they have harrumphed?	must I have been harrumphing? must you have been harrumphing? must he have been harrumphing? must we have been harrumphing? must you have been harrumphing? must they have been harrumphing?

Interro-negative form

Simple form	V-ing form
must I not harrumph? must you not harrumph? must he not harrumph? must we not harrumph? must you not harrumph? must they not harrumph?	must I not be harrumphing? must you not be harrumphing? must he not be harrumphing? must we not be harrumphing? must you not be harrumphing? must they not be harrumphing?
Perfect	V-ing perfect
must I not have harrumphed? must you not have harrumphed? must he not have harrumphed? must we not have harrumphed? must you not have harrumphed? must they not have harrumphed?	must I not have been harrumphing? must you not have been harrumphing? must he not have been harrumphing? must we not have been harrumphing? must you not have been harrumphing? must they not have been harrumphing?