English verb conjugation
MUST ROVC

Regular verb: rovc - rovced - rovced

Affirmation

Simple form	V-ing form
I must rovc you must rovc he must rovc we must rovc you must rovc they must rovc	I must be rovcing you must be rovcing he must be rovcing we must be rovcing you must be rovcing they must be rovcing
Perfect	V-ing perfect
I must have rovced you must have rovced he must have rovced we must have rovced you must have rovced they must have rovced	I must have been rovcing you must have been rovcing he must have been rovcing we must have been rovcing you must have been rovcing they must have been rovcing

Negation

Simple form	V-ing form
I must not rovc you must not rovc he must not rovc we must not rovc you must not rovc they must not rovc	I must not be rovcing you must not be rovcing he must not be rovcing we must not be rovcing you must not be rovcing they must not be rovcing
Perfect	V-ing perfect
I must not have rovced you must not have rovced he must not have rovced we must not have rovced you must not have rovced they must not have rovced	I must not have been rovcing you must not have been rovcing he must not have been rovcing we must not have been rovcing you must not have been rovcing they must not have been rovcing

Interrogative form

Simple form	V-ing form
must I rovc? must you rovc? must he rovc? must we rovc? must you rovc? must they rovc?	must I be rovcing? must you be rovcing? must he be rovcing? must we be rovcing? must you be rovcing? must they be rovcing?
Perfect	V-ing perfect
must I have rovced? must you have rovced? must he have rovced? must we have rovced? must you have rovced? must they have rovced?	must I have been rovcing? must you have been rovcing? must he have been rovcing? must we have been rovcing? must you have been rovcing? must they have been rovcing?

Interro-negative form

Simple form	V-ing form
must I not rovc? must you not rovc? must he not rovc? must we not rovc? must you not rovc? must they not rovc?	must I not be rovcing? must you not be rovcing? must he not be rovcing? must we not be rovcing? must you not be rovcing? must they not be rovcing?
Perfect	V-ing perfect
must I not have rovced? must you not have rovced? must he not have rovced? must we not have rovced? must you not have rovced? must they not have rovced?	must I not have been rovcing? must you not have been rovcing? must he not have been rovcing? must we not have been rovcing? must you not have been rovcing? must they not have been rovcing?