English verb conjugation
COULD SCRIBBLE

Regular verb: scribble - scribbled - scribbled

Affirmation

Simple form	V-ing form
I could scribble you could scribble she could scribble we could scribble you could scribble they could scribble	I could be scribbling you could be scribbling she could be scribbling we could be scribbling you could be scribbling they could be scribbling
Perfect	V-ing perfect
I could have scribbled you could have scribbled she could have scribbled we could have scribbled you could have scribbled they could have scribbled	I could have been scribbling you could have been scribbling she could have been scribbling we could have been scribbling you could have been scribbling they could have been scribbling

Negation

Simple form	V-ing form
I could not scribble you could not scribble she could not scribble we could not scribble you could not scribble they could not scribble	I could not be scribbling you could not be scribbling she could not be scribbling we could not be scribbling you could not be scribbling they could not be scribbling
Perfect	V-ing perfect
I could not have scribbled you could not have scribbled she could not have scribbled we could not have scribbled you could not have scribbled they could not have scribbled	I could not have been scribbling you could not have been scribbling she could not have been scribbling we could not have been scribbling you could not have been scribbling they could not have been scribbling

Interrogative form

Simple form	V-ing form
could I scribble? could you scribble? could she scribble? could we scribble? could you scribble? could they scribble?	could I be scribbling? could you be scribbling? could she be scribbling? could we be scribbling? could you be scribbling? could they be scribbling?
Perfect	V-ing perfect
could I have scribbled? could you have scribbled? could she have scribbled? could we have scribbled? could you have scribbled? could they have scribbled?	could I have been scribbling? could you have been scribbling? could she have been scribbling? could we have been scribbling? could you have been scribbling? could they have been scribbling?

Interro-negative form

Simple form	V-ing form
could I not scribble? could you not scribble? could she not scribble? could we not scribble? could you not scribble? could they not scribble?	could I not be scribbling? could you not be scribbling? could she not be scribbling? could we not be scribbling? could you not be scribbling? could they not be scribbling?
Perfect	V-ing perfect
could I not have scribbled? could you not have scribbled? could she not have scribbled? could we not have scribbled? could you not have scribbled? could they not have scribbled?	could I not have been scribbling? could you not have been scribbling? could she not have been scribbling? could we not have been scribbling? could you not have been scribbling? could they not have been scribbling?