English verb conjugation
COULD ZONK

Regular verb: zonk - zonked - zonked

Affirmation

Simple form	V-ing form
I could zonk you could zonk he could zonk we could zonk you could zonk they could zonk	I could be zonking you could be zonking he could be zonking we could be zonking you could be zonking they could be zonking
Perfect	V-ing perfect
I could have zonked you could have zonked he could have zonked we could have zonked you could have zonked they could have zonked	I could have been zonking you could have been zonking he could have been zonking we could have been zonking you could have been zonking they could have been zonking

Negation

Simple form	V-ing form
I could not zonk you could not zonk he could not zonk we could not zonk you could not zonk they could not zonk	I could not be zonking you could not be zonking he could not be zonking we could not be zonking you could not be zonking they could not be zonking
Perfect	V-ing perfect
I could not have zonked you could not have zonked he could not have zonked we could not have zonked you could not have zonked they could not have zonked	I could not have been zonking you could not have been zonking he could not have been zonking we could not have been zonking you could not have been zonking they could not have been zonking

Interrogative form

Simple form	V-ing form
could I zonk? could you zonk? could he zonk? could we zonk? could you zonk? could they zonk?	could I be zonking? could you be zonking? could he be zonking? could we be zonking? could you be zonking? could they be zonking?
Perfect	V-ing perfect
could I have zonked? could you have zonked? could he have zonked? could we have zonked? could you have zonked? could they have zonked?	could I have been zonking? could you have been zonking? could he have been zonking? could we have been zonking? could you have been zonking? could they have been zonking?

Interro-negative form

Simple form	V-ing form
could I not zonk? could you not zonk? could he not zonk? could we not zonk? could you not zonk? could they not zonk?	could I not be zonking? could you not be zonking? could he not be zonking? could we not be zonking? could you not be zonking? could they not be zonking?
Perfect	V-ing perfect
could I not have zonked? could you not have zonked? could he not have zonked? could we not have zonked? could you not have zonked? could they not have zonked?	could I not have been zonking? could you not have been zonking? could he not have been zonking? could we not have been zonking? could you not have been zonking? could they not have been zonking?