English verb conjugation
MUST BUMP

Regular verb: bump - bumped - bumped

Affirmation

Simple form	V-ing form
I must bump you must bump he must bump we must bump you must bump they must bump	I must be bumping you must be bumping he must be bumping we must be bumping you must be bumping they must be bumping
Perfect	V-ing perfect
I must have bumped you must have bumped he must have bumped we must have bumped you must have bumped they must have bumped	I must have been bumping you must have been bumping he must have been bumping we must have been bumping you must have been bumping they must have been bumping

Negation

Simple form	V-ing form
I mustn't bump you mustn't bump he mustn't bump we mustn't bump you mustn't bump they mustn't bump	I mustn't be bumping you mustn't be bumping he mustn't be bumping we mustn't be bumping you mustn't be bumping they mustn't be bumping
Perfect	V-ing perfect
I mustn't have bumped you mustn't have bumped he mustn't have bumped we mustn't have bumped you mustn't have bumped they mustn't have bumped	I mustn't have been bumping you mustn't have been bumping he mustn't have been bumping we mustn't have been bumping you mustn't have been bumping they mustn't have been bumping

Interrogative form

Simple form	V-ing form
must I bump? must you bump? must he bump? must we bump? must you bump? must they bump?	must I be bumping? must you be bumping? must he be bumping? must we be bumping? must you be bumping? must they be bumping?
Perfect	V-ing perfect
must I have bumped? must you have bumped? must he have bumped? must we have bumped? must you have bumped? must they have bumped?	must I have been bumping? must you have been bumping? must he have been bumping? must we have been bumping? must you have been bumping? must they have been bumping?

Interro-negative form

Simple form	V-ing form
mustn't I bump? mustn't you bump? mustn't he bump? mustn't we bump? mustn't you bump? mustn't they bump?	mustn't I be bumping? mustn't you be bumping? mustn't he be bumping? mustn't we be bumping? mustn't you be bumping? mustn't they be bumping?
Perfect	V-ing perfect
mustn't I have bumped? mustn't you have bumped? mustn't he have bumped? mustn't we have bumped? mustn't you have bumped? mustn't they have bumped?	mustn't I have been bumping? mustn't you have been bumping? mustn't he have been bumping? mustn't we have been bumping? mustn't you have been bumping? mustn't they have been bumping?