could stuff
Verbo regular: stuff - stuffed- stuffed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could stuff
you could stuff
he could stuff
we could stuff
you could stuff
they could stuff 	I could be stuffing
you could be stuffing
he could be stuffing
we could be stuffing
you could be stuffing
they could be stuffing	I could have stuffed
you could have stuffed
he could have stuffed
we could have stuffed
you could have stuffed
they could have stuffed	I could have been stuffing
you could have been stuffing
he could have been stuffing
we could have been stuffing
you could have been stuffing
they could have been stuffing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not stuff
you could not stuff
he could not stuff
we could not stuff
you could not stuff
they could not stuff 	I could not be stuffing
you could not be stuffing
he could not be stuffing
we could not be stuffing
you could not be stuffing
they could not be stuffing	I could not have stuffed
you could not have stuffed
he could not have stuffed
we could not have stuffed
you could not have stuffed
they could not have stuffed	I could not have been stuffing
you could not have been stuffing
he could not have been stuffing
we could not have been stuffing
you could not have been stuffing
they could not have been stuffing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I stuff?
could you stuff?
could he stuff?
could we stuff?
could you stuff?
could they stuff? 	could I be stuffing?
could you be stuffing?
could he be stuffing?
could we be stuffing?
could you be stuffing?
could they be stuffing? 	could I have stuffed?
could you have stuffed?
could he have stuffed?
could we have stuffed?
could you have stuffed?
could they have stuffed? 	could I have been stuffing?
could you have been stuffing?
could he have been stuffing?
could we have been stuffing?
could you have been stuffing?
could they have been stuffing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not stuff?
could you not stuff?
could he not stuff?
could we not stuff?
could you not stuff?
could they not stuff? 	could I not be stuffing?
could you not be stuffing?
could he not be stuffing?
could we not be stuffing?
could you not be stuffing?
could they not be stuffing? 	could I not have stuffed?
could you not have stuffed?
could he not have stuffed?
could we not have stuffed?
could you not have stuffed?
could they not have stuffed? 	could I not have been stuffing?
could you not have been stuffing?
could he not have been stuffing?
could we not have been stuffing?
could you not have been stuffing?
could they not have been stuffing?