English verb conjugation
MUST ROAR

Regular verb: roar - roared - roared

Affirmation

Simple form	V-ing form
I must roar you must roar he must roar we must roar you must roar they must roar	I must be roaring you must be roaring he must be roaring we must be roaring you must be roaring they must be roaring
Perfect	V-ing perfect
I must have roared you must have roared he must have roared we must have roared you must have roared they must have roared	I must have been roaring you must have been roaring he must have been roaring we must have been roaring you must have been roaring they must have been roaring

Negation

Simple form	V-ing form
I mustn't roar you mustn't roar he mustn't roar we mustn't roar you mustn't roar they mustn't roar	I mustn't be roaring you mustn't be roaring he mustn't be roaring we mustn't be roaring you mustn't be roaring they mustn't be roaring
Perfect	V-ing perfect
I mustn't have roared you mustn't have roared he mustn't have roared we mustn't have roared you mustn't have roared they mustn't have roared	I mustn't have been roaring you mustn't have been roaring he mustn't have been roaring we mustn't have been roaring you mustn't have been roaring they mustn't have been roaring

Interrogative form

Simple form	V-ing form
must I roar? must you roar? must he roar? must we roar? must you roar? must they roar?	must I be roaring? must you be roaring? must he be roaring? must we be roaring? must you be roaring? must they be roaring?
Perfect	V-ing perfect
must I have roared? must you have roared? must he have roared? must we have roared? must you have roared? must they have roared?	must I have been roaring? must you have been roaring? must he have been roaring? must we have been roaring? must you have been roaring? must they have been roaring?

Interro-negative form

Simple form	V-ing form
mustn't I roar? mustn't you roar? mustn't he roar? mustn't we roar? mustn't you roar? mustn't they roar?	mustn't I be roaring? mustn't you be roaring? mustn't he be roaring? mustn't we be roaring? mustn't you be roaring? mustn't they be roaring?
Perfect	V-ing perfect
mustn't I have roared? mustn't you have roared? mustn't he have roared? mustn't we have roared? mustn't you have roared? mustn't they have roared?	mustn't I have been roaring? mustn't you have been roaring? mustn't he have been roaring? mustn't we have been roaring? mustn't you have been roaring? mustn't they have been roaring?