English verb conjugation
MUST PRIM

Regular verb: prim - primmed - primmed

Affirmation

Simple form	V-ing form
I must prim you must prim he must prim we must prim you must prim they must prim	I must be primming you must be primming he must be primming we must be primming you must be primming they must be primming
Perfect	V-ing perfect
I must have primmed you must have primmed he must have primmed we must have primmed you must have primmed they must have primmed	I must have been primming you must have been primming he must have been primming we must have been primming you must have been primming they must have been primming

Negation

Simple form	V-ing form
I mustn't prim you mustn't prim he mustn't prim we mustn't prim you mustn't prim they mustn't prim	I mustn't be primming you mustn't be primming he mustn't be primming we mustn't be primming you mustn't be primming they mustn't be primming
Perfect	V-ing perfect
I mustn't have primmed you mustn't have primmed he mustn't have primmed we mustn't have primmed you mustn't have primmed they mustn't have primmed	I mustn't have been primming you mustn't have been primming he mustn't have been primming we mustn't have been primming you mustn't have been primming they mustn't have been primming

Interrogative form

Simple form	V-ing form
must I prim? must you prim? must he prim? must we prim? must you prim? must they prim?	must I be primming? must you be primming? must he be primming? must we be primming? must you be primming? must they be primming?
Perfect	V-ing perfect
must I have primmed? must you have primmed? must he have primmed? must we have primmed? must you have primmed? must they have primmed?	must I have been primming? must you have been primming? must he have been primming? must we have been primming? must you have been primming? must they have been primming?

Interro-negative form

Simple form	V-ing form
mustn't I prim? mustn't you prim? mustn't he prim? mustn't we prim? mustn't you prim? mustn't they prim?	mustn't I be primming? mustn't you be primming? mustn't he be primming? mustn't we be primming? mustn't you be primming? mustn't they be primming?
Perfect	V-ing perfect
mustn't I have primmed? mustn't you have primmed? mustn't he have primmed? mustn't we have primmed? mustn't you have primmed? mustn't they have primmed?	mustn't I have been primming? mustn't you have been primming? mustn't he have been primming? mustn't we have been primming? mustn't you have been primming? mustn't they have been primming?