English verb conjugation
MUST CONCOCT

Regular verb: concoct - concocted - concocted

Affirmation

Simple form	V-ing form
I must concoct you must concoct he must concoct we must concoct you must concoct they must concoct	I must be concocting you must be concocting he must be concocting we must be concocting you must be concocting they must be concocting
Perfect	V-ing perfect
I must have concocted you must have concocted he must have concocted we must have concocted you must have concocted they must have concocted	I must have been concocting you must have been concocting he must have been concocting we must have been concocting you must have been concocting they must have been concocting

Negation

Simple form	V-ing form
I mustn't concoct you mustn't concoct he mustn't concoct we mustn't concoct you mustn't concoct they mustn't concoct	I mustn't be concocting you mustn't be concocting he mustn't be concocting we mustn't be concocting you mustn't be concocting they mustn't be concocting
Perfect	V-ing perfect
I mustn't have concocted you mustn't have concocted he mustn't have concocted we mustn't have concocted you mustn't have concocted they mustn't have concocted	I mustn't have been concocting you mustn't have been concocting he mustn't have been concocting we mustn't have been concocting you mustn't have been concocting they mustn't have been concocting

Interrogative form

Simple form	V-ing form
must I concoct? must you concoct? must he concoct? must we concoct? must you concoct? must they concoct?	must I be concocting? must you be concocting? must he be concocting? must we be concocting? must you be concocting? must they be concocting?
Perfect	V-ing perfect
must I have concocted? must you have concocted? must he have concocted? must we have concocted? must you have concocted? must they have concocted?	must I have been concocting? must you have been concocting? must he have been concocting? must we have been concocting? must you have been concocting? must they have been concocting?

Interro-negative form

Simple form	V-ing form
mustn't I concoct? mustn't you concoct? mustn't he concoct? mustn't we concoct? mustn't you concoct? mustn't they concoct?	mustn't I be concocting? mustn't you be concocting? mustn't he be concocting? mustn't we be concocting? mustn't you be concocting? mustn't they be concocting?
Perfect	V-ing perfect
mustn't I have concocted? mustn't you have concocted? mustn't he have concocted? mustn't we have concocted? mustn't you have concocted? mustn't they have concocted?	mustn't I have been concocting? mustn't you have been concocting? mustn't he have been concocting? mustn't we have been concocting? mustn't you have been concocting? mustn't they have been concocting?