English verb conjugation
MUST CONCOCT

Regular verb: concoct - concocted - concocted

Affirmation

Simple form	V-ing form
I must concoct you must concoct she must concoct we must concoct you must concoct they must concoct	I must be concocting you must be concocting she 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 she 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 she 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 she 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 she 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 she 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 she 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 she concoct? must we concoct? must you concoct? must they concoct?	must I be concocting? must you be concocting? must she 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 she 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 she 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 she 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 she 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 she 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 she have been concocting? mustn't we have been concocting? mustn't you have been concocting? mustn't they have been concocting?