English verb conjugation
COULD PUPATE

Regular verb: pupate - pupated - pupated

Affirmation

Simple form	V-ing form
I could pupate you could pupate he could pupate we could pupate you could pupate they could pupate	I could be pupating you could be pupating he could be pupating we could be pupating you could be pupating they could be pupating
Perfect	V-ing perfect
I could have pupated you could have pupated he could have pupated we could have pupated you could have pupated they could have pupated	I could have been pupating you could have been pupating he could have been pupating we could have been pupating you could have been pupating they could have been pupating

Negation

Simple form	V-ing form
I couldn't pupate you couldn't pupate he couldn't pupate we couldn't pupate you couldn't pupate they couldn't pupate	I couldn't be pupating you couldn't be pupating he couldn't be pupating we couldn't be pupating you couldn't be pupating they couldn't be pupating
Perfect	V-ing perfect
I couldn't have pupated you couldn't have pupated he couldn't have pupated we couldn't have pupated you couldn't have pupated they couldn't have pupated	I couldn't have been pupating you couldn't have been pupating he couldn't have been pupating we couldn't have been pupating you couldn't have been pupating they couldn't have been pupating

Interrogative form

Simple form	V-ing form
could I pupate? could you pupate? could he pupate? could we pupate? could you pupate? could they pupate?	could I be pupating? could you be pupating? could he be pupating? could we be pupating? could you be pupating? could they be pupating?
Perfect	V-ing perfect
could I have pupated? could you have pupated? could he have pupated? could we have pupated? could you have pupated? could they have pupated?	could I have been pupating? could you have been pupating? could he have been pupating? could we have been pupating? could you have been pupating? could they have been pupating?

Interro-negative form

Simple form	V-ing form
couldn't I pupate? couldn't you pupate? couldn't he pupate? couldn't we pupate? couldn't you pupate? couldn't they pupate?	couldn't I be pupating? couldn't you be pupating? couldn't he be pupating? couldn't we be pupating? couldn't you be pupating? couldn't they be pupating?
Perfect	V-ing perfect
couldn't I have pupated? couldn't you have pupated? couldn't he have pupated? couldn't we have pupated? couldn't you have pupated? couldn't they have pupated?	couldn't I have been pupating? couldn't you have been pupating? couldn't he have been pupating? couldn't we have been pupating? couldn't you have been pupating? couldn't they have been pupating?