could single-space
Verbo regolare: single-space - single-spaced- single-spaced

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could single-space
you could single-space
she could single-space
we could single-space
you could single-space
they could single-space 	I could be single-spacing
you could be single-spacing
she could be single-spacing
we could be single-spacing
you could be single-spacing
they could be single-spacing	I could have single-spaced
you could have single-spaced
she could have single-spaced
we could have single-spaced
you could have single-spaced
they could have single-spaced	I could have been single-spacing
you could have been single-spacing
she could have been single-spacing
we could have been single-spacing
you could have been single-spacing
they could have been single-spacing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not single-space
you could not single-space
she could not single-space
we could not single-space
you could not single-space
they could not single-space 	I could not be single-spacing
you could not be single-spacing
she could not be single-spacing
we could not be single-spacing
you could not be single-spacing
they could not be single-spacing	I could not have single-spaced
you could not have single-spaced
she could not have single-spaced
we could not have single-spaced
you could not have single-spaced
they could not have single-spaced	I could not have been single-spacing
you could not have been single-spacing
she could not have been single-spacing
we could not have been single-spacing
you could not have been single-spacing
they could not have been single-spacing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I single-space?
could you single-space?
could she single-space?
could we single-space?
could you single-space?
could they single-space? 	could I be single-spacing?
could you be single-spacing?
could she be single-spacing?
could we be single-spacing?
could you be single-spacing?
could they be single-spacing? 	could I have single-spaced?
could you have single-spaced?
could she have single-spaced?
could we have single-spaced?
could you have single-spaced?
could they have single-spaced? 	could I have been single-spacing?
could you have been single-spacing?
could she have been single-spacing?
could we have been single-spacing?
could you have been single-spacing?
could they have been single-spacing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not single-space?
could you not single-space?
could she not single-space?
could we not single-space?
could you not single-space?
could they not single-space? 	could I not be single-spacing?
could you not be single-spacing?
could she not be single-spacing?
could we not be single-spacing?
could you not be single-spacing?
could they not be single-spacing? 	could I not have single-spaced?
could you not have single-spaced?
could she not have single-spaced?
could we not have single-spaced?
could you not have single-spaced?
could they not have single-spaced? 	could I not have been single-spacing?
could you not have been single-spacing?
could she not have been single-spacing?
could we not have been single-spacing?
could you not have been single-spacing?
could they not have been single-spacing?