could sleepwalk
Verbo regular: sleepwalk - sleepwalked- sleepwalked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could sleepwalk
you could sleepwalk
he could sleepwalk
we could sleepwalk
you could sleepwalk
they could sleepwalk 	I could be sleepwalking
you could be sleepwalking
he could be sleepwalking
we could be sleepwalking
you could be sleepwalking
they could be sleepwalking	I could have sleepwalked
you could have sleepwalked
he could have sleepwalked
we could have sleepwalked
you could have sleepwalked
they could have sleepwalked	I could have been sleepwalking
you could have been sleepwalking
he could have been sleepwalking
we could have been sleepwalking
you could have been sleepwalking
they could have been sleepwalking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't sleepwalk
you couldn't sleepwalk
he couldn't sleepwalk
we couldn't sleepwalk
you couldn't sleepwalk
they couldn't sleepwalk 	I couldn't be sleepwalking
you couldn't be sleepwalking
he couldn't be sleepwalking
we couldn't be sleepwalking
you couldn't be sleepwalking
they couldn't be sleepwalking	I couldn't have sleepwalked
you couldn't have sleepwalked
he couldn't have sleepwalked
we couldn't have sleepwalked
you couldn't have sleepwalked
they couldn't have sleepwalked	I couldn't have been sleepwalking
you couldn't have been sleepwalking
he couldn't have been sleepwalking
we couldn't have been sleepwalking
you couldn't have been sleepwalking
they couldn't have been sleepwalking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I sleepwalk?
could you sleepwalk?
could he sleepwalk?
could we sleepwalk?
could you sleepwalk?
could they sleepwalk? 	could I be sleepwalking?
could you be sleepwalking?
could he be sleepwalking?
could we be sleepwalking?
could you be sleepwalking?
could they be sleepwalking? 	could I have sleepwalked?
could you have sleepwalked?
could he have sleepwalked?
could we have sleepwalked?
could you have sleepwalked?
could they have sleepwalked? 	could I have been sleepwalking?
could you have been sleepwalking?
could he have been sleepwalking?
could we have been sleepwalking?
could you have been sleepwalking?
could they have been sleepwalking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I sleepwalk?
couldn't you sleepwalk?
couldn't he sleepwalk?
couldn't we sleepwalk?
couldn't you sleepwalk?
couldn't they sleepwalk? 	couldn't I be sleepwalking?
couldn't you be sleepwalking?
couldn't he be sleepwalking?
couldn't we be sleepwalking?
couldn't you be sleepwalking?
couldn't they be sleepwalking? 	couldn't I have sleepwalked?
couldn't you have sleepwalked?
couldn't he have sleepwalked?
couldn't we have sleepwalked?
couldn't you have sleepwalked?
couldn't they have sleepwalked? 	couldn't I have been sleepwalking?
couldn't you have been sleepwalking?
couldn't he have been sleepwalking?
couldn't we have been sleepwalking?
couldn't you have been sleepwalking?
couldn't they have been sleepwalking?