English verb conjugation
MUST ROMP

Regular verb: romp - romped - romped

Affirmation

Simple form	V-ing form
I must romp you must romp he must romp we must romp you must romp they must romp	I must be romping you must be romping he must be romping we must be romping you must be romping they must be romping
Perfect	V-ing perfect
I must have romped you must have romped he must have romped we must have romped you must have romped they must have romped	I must have been romping you must have been romping he must have been romping we must have been romping you must have been romping they must have been romping

Negation

Simple form	V-ing form
I mustn't romp you mustn't romp he mustn't romp we mustn't romp you mustn't romp they mustn't romp	I mustn't be romping you mustn't be romping he mustn't be romping we mustn't be romping you mustn't be romping they mustn't be romping
Perfect	V-ing perfect
I mustn't have romped you mustn't have romped he mustn't have romped we mustn't have romped you mustn't have romped they mustn't have romped	I mustn't have been romping you mustn't have been romping he mustn't have been romping we mustn't have been romping you mustn't have been romping they mustn't have been romping

Interrogative form

Simple form	V-ing form
must I romp? must you romp? must he romp? must we romp? must you romp? must they romp?	must I be romping? must you be romping? must he be romping? must we be romping? must you be romping? must they be romping?
Perfect	V-ing perfect
must I have romped? must you have romped? must he have romped? must we have romped? must you have romped? must they have romped?	must I have been romping? must you have been romping? must he have been romping? must we have been romping? must you have been romping? must they have been romping?

Interro-negative form

Simple form	V-ing form
mustn't I romp? mustn't you romp? mustn't he romp? mustn't we romp? mustn't you romp? mustn't they romp?	mustn't I be romping? mustn't you be romping? mustn't he be romping? mustn't we be romping? mustn't you be romping? mustn't they be romping?
Perfect	V-ing perfect
mustn't I have romped? mustn't you have romped? mustn't he have romped? mustn't we have romped? mustn't you have romped? mustn't they have romped?	mustn't I have been romping? mustn't you have been romping? mustn't he have been romping? mustn't we have been romping? mustn't you have been romping? mustn't they have been romping?