English verb conjugation
COULD PLOTZ

Regular verb: plotz - plotzed - plotzed

Affirmation

Simple form	V-ing form
I could plotz you could plotz she could plotz we could plotz you could plotz they could plotz	I could be plotzing you could be plotzing she could be plotzing we could be plotzing you could be plotzing they could be plotzing
Perfect	V-ing perfect
I could have plotzed you could have plotzed she could have plotzed we could have plotzed you could have plotzed they could have plotzed	I could have been plotzing you could have been plotzing she could have been plotzing we could have been plotzing you could have been plotzing they could have been plotzing

Negation

Simple form	V-ing form
I couldn't plotz you couldn't plotz she couldn't plotz we couldn't plotz you couldn't plotz they couldn't plotz	I couldn't be plotzing you couldn't be plotzing she couldn't be plotzing we couldn't be plotzing you couldn't be plotzing they couldn't be plotzing
Perfect	V-ing perfect
I couldn't have plotzed you couldn't have plotzed she couldn't have plotzed we couldn't have plotzed you couldn't have plotzed they couldn't have plotzed	I couldn't have been plotzing you couldn't have been plotzing she couldn't have been plotzing we couldn't have been plotzing you couldn't have been plotzing they couldn't have been plotzing

Interrogative form

Simple form	V-ing form
could I plotz? could you plotz? could she plotz? could we plotz? could you plotz? could they plotz?	could I be plotzing? could you be plotzing? could she be plotzing? could we be plotzing? could you be plotzing? could they be plotzing?
Perfect	V-ing perfect
could I have plotzed? could you have plotzed? could she have plotzed? could we have plotzed? could you have plotzed? could they have plotzed?	could I have been plotzing? could you have been plotzing? could she have been plotzing? could we have been plotzing? could you have been plotzing? could they have been plotzing?

Interro-negative form

Simple form	V-ing form
couldn't I plotz? couldn't you plotz? couldn't she plotz? couldn't we plotz? couldn't you plotz? couldn't they plotz?	couldn't I be plotzing? couldn't you be plotzing? couldn't she be plotzing? couldn't we be plotzing? couldn't you be plotzing? couldn't they be plotzing?
Perfect	V-ing perfect
couldn't I have plotzed? couldn't you have plotzed? couldn't she have plotzed? couldn't we have plotzed? couldn't you have plotzed? couldn't they have plotzed?	couldn't I have been plotzing? couldn't you have been plotzing? couldn't she have been plotzing? couldn't we have been plotzing? couldn't you have been plotzing? couldn't they have been plotzing?