English verb conjugation
COULD ADUMBRATE

Regular verb: adumbrate - adumbrated - adumbrated

Affirmation

Simple form	V-ing form
I could adumbrate you could adumbrate he could adumbrate we could adumbrate you could adumbrate they could adumbrate	I could be adumbrating you could be adumbrating he could be adumbrating we could be adumbrating you could be adumbrating they could be adumbrating
Perfect	V-ing perfect
I could have adumbrated you could have adumbrated he could have adumbrated we could have adumbrated you could have adumbrated they could have adumbrated	I could have been adumbrating you could have been adumbrating he could have been adumbrating we could have been adumbrating you could have been adumbrating they could have been adumbrating

Negation

Simple form	V-ing form
I couldn't adumbrate you couldn't adumbrate he couldn't adumbrate we couldn't adumbrate you couldn't adumbrate they couldn't adumbrate	I couldn't be adumbrating you couldn't be adumbrating he couldn't be adumbrating we couldn't be adumbrating you couldn't be adumbrating they couldn't be adumbrating
Perfect	V-ing perfect
I couldn't have adumbrated you couldn't have adumbrated he couldn't have adumbrated we couldn't have adumbrated you couldn't have adumbrated they couldn't have adumbrated	I couldn't have been adumbrating you couldn't have been adumbrating he couldn't have been adumbrating we couldn't have been adumbrating you couldn't have been adumbrating they couldn't have been adumbrating

Interrogative form

Simple form	V-ing form
could I adumbrate? could you adumbrate? could he adumbrate? could we adumbrate? could you adumbrate? could they adumbrate?	could I be adumbrating? could you be adumbrating? could he be adumbrating? could we be adumbrating? could you be adumbrating? could they be adumbrating?
Perfect	V-ing perfect
could I have adumbrated? could you have adumbrated? could he have adumbrated? could we have adumbrated? could you have adumbrated? could they have adumbrated?	could I have been adumbrating? could you have been adumbrating? could he have been adumbrating? could we have been adumbrating? could you have been adumbrating? could they have been adumbrating?

Interro-negative form

Simple form	V-ing form
couldn't I adumbrate? couldn't you adumbrate? couldn't he adumbrate? couldn't we adumbrate? couldn't you adumbrate? couldn't they adumbrate?	couldn't I be adumbrating? couldn't you be adumbrating? couldn't he be adumbrating? couldn't we be adumbrating? couldn't you be adumbrating? couldn't they be adumbrating?
Perfect	V-ing perfect
couldn't I have adumbrated? couldn't you have adumbrated? couldn't he have adumbrated? couldn't we have adumbrated? couldn't you have adumbrated? couldn't they have adumbrated?	couldn't I have been adumbrating? couldn't you have been adumbrating? couldn't he have been adumbrating? couldn't we have been adumbrating? couldn't you have been adumbrating? couldn't they have been adumbrating?