English verb conjugation
MUST JAPE

Regular verb: jape - japed - japed

Affirmation

Simple form	V-ing form
I must jape you must jape he must jape we must jape you must jape they must jape	I must be japing you must be japing he must be japing we must be japing you must be japing they must be japing
Perfect	V-ing perfect
I must have japed you must have japed he must have japed we must have japed you must have japed they must have japed	I must have been japing you must have been japing he must have been japing we must have been japing you must have been japing they must have been japing

Negation

Simple form	V-ing form
I mustn't jape you mustn't jape he mustn't jape we mustn't jape you mustn't jape they mustn't jape	I mustn't be japing you mustn't be japing he mustn't be japing we mustn't be japing you mustn't be japing they mustn't be japing
Perfect	V-ing perfect
I mustn't have japed you mustn't have japed he mustn't have japed we mustn't have japed you mustn't have japed they mustn't have japed	I mustn't have been japing you mustn't have been japing he mustn't have been japing we mustn't have been japing you mustn't have been japing they mustn't have been japing

Interrogative form

Simple form	V-ing form
must I jape? must you jape? must he jape? must we jape? must you jape? must they jape?	must I be japing? must you be japing? must he be japing? must we be japing? must you be japing? must they be japing?
Perfect	V-ing perfect
must I have japed? must you have japed? must he have japed? must we have japed? must you have japed? must they have japed?	must I have been japing? must you have been japing? must he have been japing? must we have been japing? must you have been japing? must they have been japing?

Interro-negative form

Simple form	V-ing form
mustn't I jape? mustn't you jape? mustn't he jape? mustn't we jape? mustn't you jape? mustn't they jape?	mustn't I be japing? mustn't you be japing? mustn't he be japing? mustn't we be japing? mustn't you be japing? mustn't they be japing?
Perfect	V-ing perfect
mustn't I have japed? mustn't you have japed? mustn't he have japed? mustn't we have japed? mustn't you have japed? mustn't they have japed?	mustn't I have been japing? mustn't you have been japing? mustn't he have been japing? mustn't we have been japing? mustn't you have been japing? mustn't they have been japing?