English verb conjugation
MUST SIRUP

Regular verb: sirup - siruped - siruped

Affirmation

Simple form	V-ing form
I must sirup you must sirup he must sirup we must sirup you must sirup they must sirup	I must be siruping you must be siruping he must be siruping we must be siruping you must be siruping they must be siruping
Perfect	V-ing perfect
I must have siruped you must have siruped he must have siruped we must have siruped you must have siruped they must have siruped	I must have been siruping you must have been siruping he must have been siruping we must have been siruping you must have been siruping they must have been siruping

Negation

Simple form	V-ing form
I mustn't sirup you mustn't sirup he mustn't sirup we mustn't sirup you mustn't sirup they mustn't sirup	I mustn't be siruping you mustn't be siruping he mustn't be siruping we mustn't be siruping you mustn't be siruping they mustn't be siruping
Perfect	V-ing perfect
I mustn't have siruped you mustn't have siruped he mustn't have siruped we mustn't have siruped you mustn't have siruped they mustn't have siruped	I mustn't have been siruping you mustn't have been siruping he mustn't have been siruping we mustn't have been siruping you mustn't have been siruping they mustn't have been siruping

Interrogative form

Simple form	V-ing form
must I sirup? must you sirup? must he sirup? must we sirup? must you sirup? must they sirup?	must I be siruping? must you be siruping? must he be siruping? must we be siruping? must you be siruping? must they be siruping?
Perfect	V-ing perfect
must I have siruped? must you have siruped? must he have siruped? must we have siruped? must you have siruped? must they have siruped?	must I have been siruping? must you have been siruping? must he have been siruping? must we have been siruping? must you have been siruping? must they have been siruping?

Interro-negative form

Simple form	V-ing form
mustn't I sirup? mustn't you sirup? mustn't he sirup? mustn't we sirup? mustn't you sirup? mustn't they sirup?	mustn't I be siruping? mustn't you be siruping? mustn't he be siruping? mustn't we be siruping? mustn't you be siruping? mustn't they be siruping?
Perfect	V-ing perfect
mustn't I have siruped? mustn't you have siruped? mustn't he have siruped? mustn't we have siruped? mustn't you have siruped? mustn't they have siruped?	mustn't I have been siruping? mustn't you have been siruping? mustn't he have been siruping? mustn't we have been siruping? mustn't you have been siruping? mustn't they have been siruping?