could double-glaze
Verbo regular: double-glaze - double-glazed- double-glazed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could double-glaze
you could double-glaze
he could double-glaze
we could double-glaze
you could double-glaze
they could double-glaze 	I could be double-glazing
you could be double-glazing
he could be double-glazing
we could be double-glazing
you could be double-glazing
they could be double-glazing	I could have double-glazed
you could have double-glazed
he could have double-glazed
we could have double-glazed
you could have double-glazed
they could have double-glazed	I could have been double-glazing
you could have been double-glazing
he could have been double-glazing
we could have been double-glazing
you could have been double-glazing
they could have been double-glazing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't double-glaze
you couldn't double-glaze
he couldn't double-glaze
we couldn't double-glaze
you couldn't double-glaze
they couldn't double-glaze 	I couldn't be double-glazing
you couldn't be double-glazing
he couldn't be double-glazing
we couldn't be double-glazing
you couldn't be double-glazing
they couldn't be double-glazing	I couldn't have double-glazed
you couldn't have double-glazed
he couldn't have double-glazed
we couldn't have double-glazed
you couldn't have double-glazed
they couldn't have double-glazed	I couldn't have been double-glazing
you couldn't have been double-glazing
he couldn't have been double-glazing
we couldn't have been double-glazing
you couldn't have been double-glazing
they couldn't have been double-glazing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I double-glaze?
could you double-glaze?
could he double-glaze?
could we double-glaze?
could you double-glaze?
could they double-glaze? 	could I be double-glazing?
could you be double-glazing?
could he be double-glazing?
could we be double-glazing?
could you be double-glazing?
could they be double-glazing? 	could I have double-glazed?
could you have double-glazed?
could he have double-glazed?
could we have double-glazed?
could you have double-glazed?
could they have double-glazed? 	could I have been double-glazing?
could you have been double-glazing?
could he have been double-glazing?
could we have been double-glazing?
could you have been double-glazing?
could they have been double-glazing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I double-glaze?
couldn't you double-glaze?
couldn't he double-glaze?
couldn't we double-glaze?
couldn't you double-glaze?
couldn't they double-glaze? 	couldn't I be double-glazing?
couldn't you be double-glazing?
couldn't he be double-glazing?
couldn't we be double-glazing?
couldn't you be double-glazing?
couldn't they be double-glazing? 	couldn't I have double-glazed?
couldn't you have double-glazed?
couldn't he have double-glazed?
couldn't we have double-glazed?
couldn't you have double-glazed?
couldn't they have double-glazed? 	couldn't I have been double-glazing?
couldn't you have been double-glazing?
couldn't he have been double-glazing?
couldn't we have been double-glazing?
couldn't you have been double-glazing?
couldn't they have been double-glazing?