could exsert
Verbo regular: exsert - exserted- exserted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could exsert
you could exsert
she could exsert
we could exsert
you could exsert
they could exsert 	I could be exserting
you could be exserting
she could be exserting
we could be exserting
you could be exserting
they could be exserting	I could have exserted
you could have exserted
she could have exserted
we could have exserted
you could have exserted
they could have exserted	I could have been exserting
you could have been exserting
she could have been exserting
we could have been exserting
you could have been exserting
they could have been exserting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not exsert
you could not exsert
she could not exsert
we could not exsert
you could not exsert
they could not exsert 	I could not be exserting
you could not be exserting
she could not be exserting
we could not be exserting
you could not be exserting
they could not be exserting	I could not have exserted
you could not have exserted
she could not have exserted
we could not have exserted
you could not have exserted
they could not have exserted	I could not have been exserting
you could not have been exserting
she could not have been exserting
we could not have been exserting
you could not have been exserting
they could not have been exserting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I exsert?
could you exsert?
could she exsert?
could we exsert?
could you exsert?
could they exsert? 	could I be exserting?
could you be exserting?
could she be exserting?
could we be exserting?
could you be exserting?
could they be exserting? 	could I have exserted?
could you have exserted?
could she have exserted?
could we have exserted?
could you have exserted?
could they have exserted? 	could I have been exserting?
could you have been exserting?
could she have been exserting?
could we have been exserting?
could you have been exserting?
could they have been exserting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not exsert?
could you not exsert?
could she not exsert?
could we not exsert?
could you not exsert?
could they not exsert? 	could I not be exserting?
could you not be exserting?
could she not be exserting?
could we not be exserting?
could you not be exserting?
could they not be exserting? 	could I not have exserted?
could you not have exserted?
could she not have exserted?
could we not have exserted?
could you not have exserted?
could they not have exserted? 	could I not have been exserting?
could you not have been exserting?
could she not have been exserting?
could we not have been exserting?
could you not have been exserting?
could they not have been exserting?