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 couldn't zonk you couldn't zonk he couldn't zonk we couldn't zonk you couldn't zonk they couldn't zonk	I couldn't be zonking you couldn't be zonking he couldn't be zonking we couldn't be zonking you couldn't be zonking they couldn't be zonking
Perfect	V-ing perfect
I couldn't have zonked you couldn't have zonked he couldn't have zonked we couldn't have zonked you couldn't have zonked they couldn't have zonked	I couldn't have been zonking you couldn't have been zonking he couldn't have been zonking we couldn't have been zonking you couldn't have been zonking they couldn't 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
couldn't I zonk? couldn't you zonk? couldn't he zonk? couldn't we zonk? couldn't you zonk? couldn't they zonk?	couldn't I be zonking? couldn't you be zonking? couldn't he be zonking? couldn't we be zonking? couldn't you be zonking? couldn't they be zonking?
Perfect	V-ing perfect
couldn't I have zonked? couldn't you have zonked? couldn't he have zonked? couldn't we have zonked? couldn't you have zonked? couldn't they have zonked?	couldn't I have been zonking? couldn't you have been zonking? couldn't he have been zonking? couldn't we have been zonking? couldn't you have been zonking? couldn't they have been zonking?