English verb conjugation
MUST DISGUISE

Regular verb: disguise - disguised - disguised

Affirmation

Simple form	V-ing form
I must disguise you must disguise he must disguise we must disguise you must disguise they must disguise	I must be disguising you must be disguising he must be disguising we must be disguising you must be disguising they must be disguising
Perfect	V-ing perfect
I must have disguised you must have disguised he must have disguised we must have disguised you must have disguised they must have disguised	I must have been disguising you must have been disguising he must have been disguising we must have been disguising you must have been disguising they must have been disguising

Negation

Simple form	V-ing form
I mustn't disguise you mustn't disguise he mustn't disguise we mustn't disguise you mustn't disguise they mustn't disguise	I mustn't be disguising you mustn't be disguising he mustn't be disguising we mustn't be disguising you mustn't be disguising they mustn't be disguising
Perfect	V-ing perfect
I mustn't have disguised you mustn't have disguised he mustn't have disguised we mustn't have disguised you mustn't have disguised they mustn't have disguised	I mustn't have been disguising you mustn't have been disguising he mustn't have been disguising we mustn't have been disguising you mustn't have been disguising they mustn't have been disguising

Interrogative form

Simple form	V-ing form
must I disguise? must you disguise? must he disguise? must we disguise? must you disguise? must they disguise?	must I be disguising? must you be disguising? must he be disguising? must we be disguising? must you be disguising? must they be disguising?
Perfect	V-ing perfect
must I have disguised? must you have disguised? must he have disguised? must we have disguised? must you have disguised? must they have disguised?	must I have been disguising? must you have been disguising? must he have been disguising? must we have been disguising? must you have been disguising? must they have been disguising?

Interro-negative form

Simple form	V-ing form
mustn't I disguise? mustn't you disguise? mustn't he disguise? mustn't we disguise? mustn't you disguise? mustn't they disguise?	mustn't I be disguising? mustn't you be disguising? mustn't he be disguising? mustn't we be disguising? mustn't you be disguising? mustn't they be disguising?
Perfect	V-ing perfect
mustn't I have disguised? mustn't you have disguised? mustn't he have disguised? mustn't we have disguised? mustn't you have disguised? mustn't they have disguised?	mustn't I have been disguising? mustn't you have been disguising? mustn't he have been disguising? mustn't we have been disguising? mustn't you have been disguising? mustn't they have been disguising?