English verb conjugation
COULD DRAPE

Regular verb: drape - draped - draped

Affirmation

Simple form	V-ing form
I could drape you could drape he could drape we could drape you could drape they could drape	I could be draping you could be draping he could be draping we could be draping you could be draping they could be draping
Perfect	V-ing perfect
I could have draped you could have draped he could have draped we could have draped you could have draped they could have draped	I could have been draping you could have been draping he could have been draping we could have been draping you could have been draping they could have been draping

Negation

Simple form	V-ing form
I couldn't drape you couldn't drape he couldn't drape we couldn't drape you couldn't drape they couldn't drape	I couldn't be draping you couldn't be draping he couldn't be draping we couldn't be draping you couldn't be draping they couldn't be draping
Perfect	V-ing perfect
I couldn't have draped you couldn't have draped he couldn't have draped we couldn't have draped you couldn't have draped they couldn't have draped	I couldn't have been draping you couldn't have been draping he couldn't have been draping we couldn't have been draping you couldn't have been draping they couldn't have been draping

Interrogative form

Simple form	V-ing form
could I drape? could you drape? could he drape? could we drape? could you drape? could they drape?	could I be draping? could you be draping? could he be draping? could we be draping? could you be draping? could they be draping?
Perfect	V-ing perfect
could I have draped? could you have draped? could he have draped? could we have draped? could you have draped? could they have draped?	could I have been draping? could you have been draping? could he have been draping? could we have been draping? could you have been draping? could they have been draping?

Interro-negative form

Simple form	V-ing form
couldn't I drape? couldn't you drape? couldn't he drape? couldn't we drape? couldn't you drape? couldn't they drape?	couldn't I be draping? couldn't you be draping? couldn't he be draping? couldn't we be draping? couldn't you be draping? couldn't they be draping?
Perfect	V-ing perfect
couldn't I have draped? couldn't you have draped? couldn't he have draped? couldn't we have draped? couldn't you have draped? couldn't they have draped?	couldn't I have been draping? couldn't you have been draping? couldn't he have been draping? couldn't we have been draping? couldn't you have been draping? couldn't they have been draping?