English verb conjugation
COULD OUTLINE

Regular verb: outline - outlined - outlined

Affirmation

Simple form	V-ing form
I could outline you could outline he could outline we could outline you could outline they could outline	I could be outlining you could be outlining he could be outlining we could be outlining you could be outlining they could be outlining
Perfect	V-ing perfect
I could have outlined you could have outlined he could have outlined we could have outlined you could have outlined they could have outlined	I could have been outlining you could have been outlining he could have been outlining we could have been outlining you could have been outlining they could have been outlining

Negation

Simple form	V-ing form
I couldn't outline you couldn't outline he couldn't outline we couldn't outline you couldn't outline they couldn't outline	I couldn't be outlining you couldn't be outlining he couldn't be outlining we couldn't be outlining you couldn't be outlining they couldn't be outlining
Perfect	V-ing perfect
I couldn't have outlined you couldn't have outlined he couldn't have outlined we couldn't have outlined you couldn't have outlined they couldn't have outlined	I couldn't have been outlining you couldn't have been outlining he couldn't have been outlining we couldn't have been outlining you couldn't have been outlining they couldn't have been outlining

Interrogative form

Simple form	V-ing form
could I outline? could you outline? could he outline? could we outline? could you outline? could they outline?	could I be outlining? could you be outlining? could he be outlining? could we be outlining? could you be outlining? could they be outlining?
Perfect	V-ing perfect
could I have outlined? could you have outlined? could he have outlined? could we have outlined? could you have outlined? could they have outlined?	could I have been outlining? could you have been outlining? could he have been outlining? could we have been outlining? could you have been outlining? could they have been outlining?

Interro-negative form

Simple form	V-ing form
couldn't I outline? couldn't you outline? couldn't he outline? couldn't we outline? couldn't you outline? couldn't they outline?	couldn't I be outlining? couldn't you be outlining? couldn't he be outlining? couldn't we be outlining? couldn't you be outlining? couldn't they be outlining?
Perfect	V-ing perfect
couldn't I have outlined? couldn't you have outlined? couldn't he have outlined? couldn't we have outlined? couldn't you have outlined? couldn't they have outlined?	couldn't I have been outlining? couldn't you have been outlining? couldn't he have been outlining? couldn't we have been outlining? couldn't you have been outlining? couldn't they have been outlining?