must exert
Verbo regular: exert - exerted- exerted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must exert
you must exert
he must exert
we must exert
you must exert
they must exert 	I must be exerting
you must be exerting
he must be exerting
we must be exerting
you must be exerting
they must be exerting	I must have exerted
you must have exerted
he must have exerted
we must have exerted
you must have exerted
they must have exerted	I must have been exerting
you must have been exerting
he must have been exerting
we must have been exerting
you must have been exerting
they must have been exerting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't exert
you mustn't exert
he mustn't exert
we mustn't exert
you mustn't exert
they mustn't exert 	I mustn't be exerting
you mustn't be exerting
he mustn't be exerting
we mustn't be exerting
you mustn't be exerting
they mustn't be exerting	I mustn't have exerted
you mustn't have exerted
he mustn't have exerted
we mustn't have exerted
you mustn't have exerted
they mustn't have exerted	I mustn't have been exerting
you mustn't have been exerting
he mustn't have been exerting
we mustn't have been exerting
you mustn't have been exerting
they mustn't have been exerting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I exert?
must you exert?
must he exert?
must we exert?
must you exert?
must they exert? 	must I be exerting?
must you be exerting?
must he be exerting?
must we be exerting?
must you be exerting?
must they be exerting? 	must I have exerted?
must you have exerted?
must he have exerted?
must we have exerted?
must you have exerted?
must they have exerted? 	must I have been exerting?
must you have been exerting?
must he have been exerting?
must we have been exerting?
must you have been exerting?
must they have been exerting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I exert?
mustn't you exert?
mustn't he exert?
mustn't we exert?
mustn't you exert?
mustn't they exert? 	mustn't I be exerting?
mustn't you be exerting?
mustn't he be exerting?
mustn't we be exerting?
mustn't you be exerting?
mustn't they be exerting? 	mustn't I have exerted?
mustn't you have exerted?
mustn't he have exerted?
mustn't we have exerted?
mustn't you have exerted?
mustn't they have exerted? 	mustn't I have been exerting?
mustn't you have been exerting?
mustn't he have been exerting?
mustn't we have been exerting?
mustn't you have been exerting?
mustn't they have been exerting?