English verb conjugation
MUST SHOWCASE

Regular verb: showcase - showcased - showcased

Affirmation

Simple form	V-ing form
I must showcase you must showcase he must showcase we must showcase you must showcase they must showcase	I must be showcasing you must be showcasing he must be showcasing we must be showcasing you must be showcasing they must be showcasing
Perfect	V-ing perfect
I must have showcased you must have showcased he must have showcased we must have showcased you must have showcased they must have showcased	I must have been showcasing you must have been showcasing he must have been showcasing we must have been showcasing you must have been showcasing they must have been showcasing

Negation

Simple form	V-ing form
I mustn't showcase you mustn't showcase he mustn't showcase we mustn't showcase you mustn't showcase they mustn't showcase	I mustn't be showcasing you mustn't be showcasing he mustn't be showcasing we mustn't be showcasing you mustn't be showcasing they mustn't be showcasing
Perfect	V-ing perfect
I mustn't have showcased you mustn't have showcased he mustn't have showcased we mustn't have showcased you mustn't have showcased they mustn't have showcased	I mustn't have been showcasing you mustn't have been showcasing he mustn't have been showcasing we mustn't have been showcasing you mustn't have been showcasing they mustn't have been showcasing

Interrogative form

Simple form	V-ing form
must I showcase? must you showcase? must he showcase? must we showcase? must you showcase? must they showcase?	must I be showcasing? must you be showcasing? must he be showcasing? must we be showcasing? must you be showcasing? must they be showcasing?
Perfect	V-ing perfect
must I have showcased? must you have showcased? must he have showcased? must we have showcased? must you have showcased? must they have showcased?	must I have been showcasing? must you have been showcasing? must he have been showcasing? must we have been showcasing? must you have been showcasing? must they have been showcasing?

Interro-negative form

Simple form	V-ing form
mustn't I showcase? mustn't you showcase? mustn't he showcase? mustn't we showcase? mustn't you showcase? mustn't they showcase?	mustn't I be showcasing? mustn't you be showcasing? mustn't he be showcasing? mustn't we be showcasing? mustn't you be showcasing? mustn't they be showcasing?
Perfect	V-ing perfect
mustn't I have showcased? mustn't you have showcased? mustn't he have showcased? mustn't we have showcased? mustn't you have showcased? mustn't they have showcased?	mustn't I have been showcasing? mustn't you have been showcasing? mustn't he have been showcasing? mustn't we have been showcasing? mustn't you have been showcasing? mustn't they have been showcasing?