English verb conjugation
COULD SLEEPWALK

Regular verb: sleepwalk - sleepwalked - sleepwalked

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?

Interro-negative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?