English verb conjugation
MUST STAND

Irregular verb: stand - stood - stood

Affirmation

Simple form	V-ing form
I must stand you must stand he must stand we must stand you must stand they must stand	I must be standing you must be standing he must be standing we must be standing you must be standing they must be standing
Perfect	V-ing perfect
I must have stood you must have stood he must have stood we must have stood you must have stood they must have stood	I must have been standing you must have been standing he must have been standing we must have been standing you must have been standing they must have been standing

Negation

Simple form	V-ing form
I mustn't stand you mustn't stand he mustn't stand we mustn't stand you mustn't stand they mustn't stand	I mustn't be standing you mustn't be standing he mustn't be standing we mustn't be standing you mustn't be standing they mustn't be standing
Perfect	V-ing perfect
I mustn't have stood you mustn't have stood he mustn't have stood we mustn't have stood you mustn't have stood they mustn't have stood	I mustn't have been standing you mustn't have been standing he mustn't have been standing we mustn't have been standing you mustn't have been standing they mustn't have been standing

Interrogative form

Simple form	V-ing form
must I stand? must you stand? must he stand? must we stand? must you stand? must they stand?	must I be standing? must you be standing? must he be standing? must we be standing? must you be standing? must they be standing?
Perfect	V-ing perfect
must I have stood? must you have stood? must he have stood? must we have stood? must you have stood? must they have stood?	must I have been standing? must you have been standing? must he have been standing? must we have been standing? must you have been standing? must they have been standing?

Interro-negative form

Simple form	V-ing form
mustn't I stand? mustn't you stand? mustn't he stand? mustn't we stand? mustn't you stand? mustn't they stand?	mustn't I be standing? mustn't you be standing? mustn't he be standing? mustn't we be standing? mustn't you be standing? mustn't they be standing?
Perfect	V-ing perfect
mustn't I have stood? mustn't you have stood? mustn't he have stood? mustn't we have stood? mustn't you have stood? mustn't they have stood?	mustn't I have been standing? mustn't you have been standing? mustn't he have been standing? mustn't we have been standing? mustn't you have been standing? mustn't they have been standing?