English verb conjugation
COULD UNCORK

Regular verb: uncork - uncorked - uncorked

Affirmation

Simple form	V-ing form
I could uncork you could uncork she could uncork we could uncork you could uncork they could uncork	I could be uncorking you could be uncorking she could be uncorking we could be uncorking you could be uncorking they could be uncorking
Perfect	V-ing perfect
I could have uncorked you could have uncorked she could have uncorked we could have uncorked you could have uncorked they could have uncorked	I could have been uncorking you could have been uncorking she could have been uncorking we could have been uncorking you could have been uncorking they could have been uncorking

Negation

Simple form	V-ing form
I could not uncork you could not uncork she could not uncork we could not uncork you could not uncork they could not uncork	I could not be uncorking you could not be uncorking she could not be uncorking we could not be uncorking you could not be uncorking they could not be uncorking
Perfect	V-ing perfect
I could not have uncorked you could not have uncorked she could not have uncorked we could not have uncorked you could not have uncorked they could not have uncorked	I could not have been uncorking you could not have been uncorking she could not have been uncorking we could not have been uncorking you could not have been uncorking they could not have been uncorking

Interrogative form

Simple form	V-ing form
could I uncork? could you uncork? could she uncork? could we uncork? could you uncork? could they uncork?	could I be uncorking? could you be uncorking? could she be uncorking? could we be uncorking? could you be uncorking? could they be uncorking?
Perfect	V-ing perfect
could I have uncorked? could you have uncorked? could she have uncorked? could we have uncorked? could you have uncorked? could they have uncorked?	could I have been uncorking? could you have been uncorking? could she have been uncorking? could we have been uncorking? could you have been uncorking? could they have been uncorking?

Interro-negative form

Simple form	V-ing form
could I not uncork? could you not uncork? could she not uncork? could we not uncork? could you not uncork? could they not uncork?	could I not be uncorking? could you not be uncorking? could she not be uncorking? could we not be uncorking? could you not be uncorking? could they not be uncorking?
Perfect	V-ing perfect
could I not have uncorked? could you not have uncorked? could she not have uncorked? could we not have uncorked? could you not have uncorked? could they not have uncorked?	could I not have been uncorking? could you not have been uncorking? could she not have been uncorking? could we not have been uncorking? could you not have been uncorking? could they not have been uncorking?