could efface
Verbo regular: efface - effaced- effaced

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could efface
you could efface
he could efface
we could efface
you could efface
they could efface 	I could be effacing
you could be effacing
he could be effacing
we could be effacing
you could be effacing
they could be effacing	I could have effaced
you could have effaced
he could have effaced
we could have effaced
you could have effaced
they could have effaced	I could have been effacing
you could have been effacing
he could have been effacing
we could have been effacing
you could have been effacing
they could have been effacing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't efface
you couldn't efface
he couldn't efface
we couldn't efface
you couldn't efface
they couldn't efface 	I couldn't be effacing
you couldn't be effacing
he couldn't be effacing
we couldn't be effacing
you couldn't be effacing
they couldn't be effacing	I couldn't have effaced
you couldn't have effaced
he couldn't have effaced
we couldn't have effaced
you couldn't have effaced
they couldn't have effaced	I couldn't have been effacing
you couldn't have been effacing
he couldn't have been effacing
we couldn't have been effacing
you couldn't have been effacing
they couldn't have been effacing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I efface?
could you efface?
could he efface?
could we efface?
could you efface?
could they efface? 	could I be effacing?
could you be effacing?
could he be effacing?
could we be effacing?
could you be effacing?
could they be effacing? 	could I have effaced?
could you have effaced?
could he have effaced?
could we have effaced?
could you have effaced?
could they have effaced? 	could I have been effacing?
could you have been effacing?
could he have been effacing?
could we have been effacing?
could you have been effacing?
could they have been effacing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I efface?
couldn't you efface?
couldn't he efface?
couldn't we efface?
couldn't you efface?
couldn't they efface? 	couldn't I be effacing?
couldn't you be effacing?
couldn't he be effacing?
couldn't we be effacing?
couldn't you be effacing?
couldn't they be effacing? 	couldn't I have effaced?
couldn't you have effaced?
couldn't he have effaced?
couldn't we have effaced?
couldn't you have effaced?
couldn't they have effaced? 	couldn't I have been effacing?
couldn't you have been effacing?
couldn't he have been effacing?
couldn't we have been effacing?
couldn't you have been effacing?
couldn't they have been effacing?