must concoct
Verbe régulier : concoct - concocted- concocted
Traduction française : composer - combiner 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
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	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	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
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	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	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
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? 	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? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
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? 	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?