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
she must exert
we must exert
you must exert
they must exert 	I must be exerting
you must be exerting
she must be exerting
we must be exerting
you must be exerting
they must be exerting	I must have exerted
you must have exerted
she 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
she 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 must not exert
you must not exert
she must not exert
we must not exert
you must not exert
they must not exert 	I must not be exerting
you must not be exerting
she must not be exerting
we must not be exerting
you must not be exerting
they must not be exerting	I must not have exerted
you must not have exerted
she must not have exerted
we must not have exerted
you must not have exerted
they must not have exerted	I must not have been exerting
you must not have been exerting
she must not have been exerting
we must not have been exerting
you must not have been exerting
they must not have been exerting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I exert?
must you exert?
must she exert?
must we exert?
must you exert?
must they exert? 	must I be exerting?
must you be exerting?
must she be exerting?
must we be exerting?
must you be exerting?
must they be exerting? 	must I have exerted?
must you have exerted?
must she 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 she 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 	
must I not exert?
must you not exert?
must she not exert?
must we not exert?
must you not exert?
must they not exert? 	must I not be exerting?
must you not be exerting?
must she not be exerting?
must we not be exerting?
must you not be exerting?
must they not be exerting? 	must I not have exerted?
must you not have exerted?
must she not have exerted?
must we not have exerted?
must you not have exerted?
must they not have exerted? 	must I not have been exerting?
must you not have been exerting?
must she not have been exerting?
must we not have been exerting?
must you not have been exerting?
must they not have been exerting?