English verb conjugation
MUST GAPE

Regular verb: gape - gaped - gaped

Affirmation

Simple form	V-ing form
I must gape you must gape she must gape we must gape you must gape they must gape	I must be gaping you must be gaping she must be gaping we must be gaping you must be gaping they must be gaping
Perfect	V-ing perfect
I must have gaped you must have gaped she must have gaped we must have gaped you must have gaped they must have gaped	I must have been gaping you must have been gaping she must have been gaping we must have been gaping you must have been gaping they must have been gaping

Negation

Simple form	V-ing form
I mustn't gape you mustn't gape she mustn't gape we mustn't gape you mustn't gape they mustn't gape	I mustn't be gaping you mustn't be gaping she mustn't be gaping we mustn't be gaping you mustn't be gaping they mustn't be gaping
Perfect	V-ing perfect
I mustn't have gaped you mustn't have gaped she mustn't have gaped we mustn't have gaped you mustn't have gaped they mustn't have gaped	I mustn't have been gaping you mustn't have been gaping she mustn't have been gaping we mustn't have been gaping you mustn't have been gaping they mustn't have been gaping

Interrogative form

Simple form	V-ing form
must I gape? must you gape? must she gape? must we gape? must you gape? must they gape?	must I be gaping? must you be gaping? must she be gaping? must we be gaping? must you be gaping? must they be gaping?
Perfect	V-ing perfect
must I have gaped? must you have gaped? must she have gaped? must we have gaped? must you have gaped? must they have gaped?	must I have been gaping? must you have been gaping? must she have been gaping? must we have been gaping? must you have been gaping? must they have been gaping?

Interro-negative form

Simple form	V-ing form
mustn't I gape? mustn't you gape? mustn't she gape? mustn't we gape? mustn't you gape? mustn't they gape?	mustn't I be gaping? mustn't you be gaping? mustn't she be gaping? mustn't we be gaping? mustn't you be gaping? mustn't they be gaping?
Perfect	V-ing perfect
mustn't I have gaped? mustn't you have gaped? mustn't she have gaped? mustn't we have gaped? mustn't you have gaped? mustn't they have gaped?	mustn't I have been gaping? mustn't you have been gaping? mustn't she have been gaping? mustn't we have been gaping? mustn't you have been gaping? mustn't they have been gaping?