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 must not sirup you must not sirup he must not sirup we must not sirup you must not sirup they must not sirup	I must not be siruping you must not be siruping he must not be siruping we must not be siruping you must not be siruping they must not be siruping
Perfect	V-ing perfect
I must not have siruped you must not have siruped he must not have siruped we must not have siruped you must not have siruped they must not have siruped	I must not have been siruping you must not have been siruping he must not have been siruping we must not have been siruping you must not have been siruping they must not 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
must I not sirup? must you not sirup? must he not sirup? must we not sirup? must you not sirup? must they not sirup?	must I not be siruping? must you not be siruping? must he not be siruping? must we not be siruping? must you not be siruping? must they not be siruping?
Perfect	V-ing perfect
must I not have siruped? must you not have siruped? must he not have siruped? must we not have siruped? must you not have siruped? must they not have siruped?	must I not have been siruping? must you not have been siruping? must he not have been siruping? must we not have been siruping? must you not have been siruping? must they not have been siruping?