English verb conjugation
COULD UNDRAPE

Regular verb: undrape - undraped - undraped

Affirmation

Simple form	V-ing form
I could undrape you could undrape he could undrape we could undrape you could undrape they could undrape	I could be undraping you could be undraping he 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 he 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 he 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 he 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 he 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 he 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 he 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 he undrape? could we undrape? could you undrape? could they undrape?	could I be undraping? could you be undraping? could he 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 he 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 he 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 he 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 he 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 he 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 he not have been undraping? could we not have been undraping? could you not have been undraping? could they not have been undraping?