English verb conjugation
COULD UNDRAPE

Regular verb: undrape - undraped - undraped

Affirmation

Simple form	V-ing form
I could undrape you could undrape she could undrape we could undrape you could undrape they could undrape	I could be undraping you could be undraping she could be undraping we could be undraping you could be undraping they could be undraping
Perfect	V-ing perfect
I could have undraped you could have undraped she could have undraped we could have undraped you could have undraped they could have undraped	I could have been undraping you could have been undraping she could have been undraping we could have been undraping you could have been undraping they could have been undraping

Negation

Simple form	V-ing form
I could not undrape you could not undrape she could not undrape we could not undrape you could not undrape they could not undrape	I could not be undraping you could not be undraping she could not be undraping we could not be undraping you could not be undraping they could not be undraping
Perfect	V-ing perfect
I could not have undraped you could not have undraped she could not have undraped we could not have undraped you could not have undraped they could not have undraped	I could not have been undraping you could not have been undraping she could not have been undraping we could not have been undraping you could not have been undraping they could not have been undraping

Interrogative form

Simple form	V-ing form
could I undrape? could you undrape? could she undrape? could we undrape? could you undrape? could they undrape?	could I be undraping? could you be undraping? could she be undraping? could we be undraping? could you be undraping? could they be undraping?
Perfect	V-ing perfect
could I have undraped? could you have undraped? could she have undraped? could we have undraped? could you have undraped? could they have undraped?	could I have been undraping? could you have been undraping? could she have been undraping? could we have been undraping? could you have been undraping? could they have been undraping?

Interro-negative form

Simple form	V-ing form
could I not undrape? could you not undrape? could she not undrape? could we not undrape? could you not undrape? could they not undrape?	could I not be undraping? could you not be undraping? could she not be undraping? could we not be undraping? could you not be undraping? could they not be undraping?
Perfect	V-ing perfect
could I not have undraped? could you not have undraped? could she not have undraped? could we not have undraped? could you not have undraped? could they not have undraped?	could I not have been undraping? could you not have been undraping? could she not have been undraping? could we not have been undraping? could you not have been undraping? could they not have been undraping?