could sex
Verbo regular: sex - sexed- sexed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could sex
you could sex
he could sex
we could sex
you could sex
they could sex 	I could be sexing
you could be sexing
he could be sexing
we could be sexing
you could be sexing
they could be sexing	I could have sexed
you could have sexed
he could have sexed
we could have sexed
you could have sexed
they could have sexed	I could have been sexing
you could have been sexing
he could have been sexing
we could have been sexing
you could have been sexing
they could have been sexing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not sex
you could not sex
he could not sex
we could not sex
you could not sex
they could not sex 	I could not be sexing
you could not be sexing
he could not be sexing
we could not be sexing
you could not be sexing
they could not be sexing	I could not have sexed
you could not have sexed
he could not have sexed
we could not have sexed
you could not have sexed
they could not have sexed	I could not have been sexing
you could not have been sexing
he could not have been sexing
we could not have been sexing
you could not have been sexing
they could not have been sexing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I sex?
could you sex?
could he sex?
could we sex?
could you sex?
could they sex? 	could I be sexing?
could you be sexing?
could he be sexing?
could we be sexing?
could you be sexing?
could they be sexing? 	could I have sexed?
could you have sexed?
could he have sexed?
could we have sexed?
could you have sexed?
could they have sexed? 	could I have been sexing?
could you have been sexing?
could he have been sexing?
could we have been sexing?
could you have been sexing?
could they have been sexing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not sex?
could you not sex?
could he not sex?
could we not sex?
could you not sex?
could they not sex? 	could I not be sexing?
could you not be sexing?
could he not be sexing?
could we not be sexing?
could you not be sexing?
could they not be sexing? 	could I not have sexed?
could you not have sexed?
could he not have sexed?
could we not have sexed?
could you not have sexed?
could they not have sexed? 	could I not have been sexing?
could you not have been sexing?
could he not have been sexing?
could we not have been sexing?
could you not have been sexing?
could they not have been sexing?