could engraft
Verbo regular: engraft - engrafted- engrafted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could engraft
you could engraft
he could engraft
we could engraft
you could engraft
they could engraft 	I could be engrafting
you could be engrafting
he could be engrafting
we could be engrafting
you could be engrafting
they could be engrafting	I could have engrafted
you could have engrafted
he could have engrafted
we could have engrafted
you could have engrafted
they could have engrafted	I could have been engrafting
you could have been engrafting
he could have been engrafting
we could have been engrafting
you could have been engrafting
they could have been engrafting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't engraft
you couldn't engraft
he couldn't engraft
we couldn't engraft
you couldn't engraft
they couldn't engraft 	I couldn't be engrafting
you couldn't be engrafting
he couldn't be engrafting
we couldn't be engrafting
you couldn't be engrafting
they couldn't be engrafting	I couldn't have engrafted
you couldn't have engrafted
he couldn't have engrafted
we couldn't have engrafted
you couldn't have engrafted
they couldn't have engrafted	I couldn't have been engrafting
you couldn't have been engrafting
he couldn't have been engrafting
we couldn't have been engrafting
you couldn't have been engrafting
they couldn't have been engrafting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I engraft?
could you engraft?
could he engraft?
could we engraft?
could you engraft?
could they engraft? 	could I be engrafting?
could you be engrafting?
could he be engrafting?
could we be engrafting?
could you be engrafting?
could they be engrafting? 	could I have engrafted?
could you have engrafted?
could he have engrafted?
could we have engrafted?
could you have engrafted?
could they have engrafted? 	could I have been engrafting?
could you have been engrafting?
could he have been engrafting?
could we have been engrafting?
could you have been engrafting?
could they have been engrafting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I engraft?
couldn't you engraft?
couldn't he engraft?
couldn't we engraft?
couldn't you engraft?
couldn't they engraft? 	couldn't I be engrafting?
couldn't you be engrafting?
couldn't he be engrafting?
couldn't we be engrafting?
couldn't you be engrafting?
couldn't they be engrafting? 	couldn't I have engrafted?
couldn't you have engrafted?
couldn't he have engrafted?
couldn't we have engrafted?
couldn't you have engrafted?
couldn't they have engrafted? 	couldn't I have been engrafting?
couldn't you have been engrafting?
couldn't he have been engrafting?
couldn't we have been engrafting?
couldn't you have been engrafting?
couldn't they have been engrafting?