English verb conjugation
COULD BROOD

Regular verb: brood - brooded - brooded

Affirmation

Simple form	V-ing form
I could brood you could brood she could brood we could brood you could brood they could brood	I could be brooding you could be brooding she could be brooding we could be brooding you could be brooding they could be brooding
Perfect	V-ing perfect
I could have brooded you could have brooded she could have brooded we could have brooded you could have brooded they could have brooded	I could have been brooding you could have been brooding she could have been brooding we could have been brooding you could have been brooding they could have been brooding

Negation

Simple form	V-ing form
I couldn't brood you couldn't brood she couldn't brood we couldn't brood you couldn't brood they couldn't brood	I couldn't be brooding you couldn't be brooding she couldn't be brooding we couldn't be brooding you couldn't be brooding they couldn't be brooding
Perfect	V-ing perfect
I couldn't have brooded you couldn't have brooded she couldn't have brooded we couldn't have brooded you couldn't have brooded they couldn't have brooded	I couldn't have been brooding you couldn't have been brooding she couldn't have been brooding we couldn't have been brooding you couldn't have been brooding they couldn't have been brooding

Interrogative form

Simple form	V-ing form
could I brood? could you brood? could she brood? could we brood? could you brood? could they brood?	could I be brooding? could you be brooding? could she be brooding? could we be brooding? could you be brooding? could they be brooding?
Perfect	V-ing perfect
could I have brooded? could you have brooded? could she have brooded? could we have brooded? could you have brooded? could they have brooded?	could I have been brooding? could you have been brooding? could she have been brooding? could we have been brooding? could you have been brooding? could they have been brooding?

Interro-negative form

Simple form	V-ing form
couldn't I brood? couldn't you brood? couldn't she brood? couldn't we brood? couldn't you brood? couldn't they brood?	couldn't I be brooding? couldn't you be brooding? couldn't she be brooding? couldn't we be brooding? couldn't you be brooding? couldn't they be brooding?
Perfect	V-ing perfect
couldn't I have brooded? couldn't you have brooded? couldn't she have brooded? couldn't we have brooded? couldn't you have brooded? couldn't they have brooded?	couldn't I have been brooding? couldn't you have been brooding? couldn't she have been brooding? couldn't we have been brooding? couldn't you have been brooding? couldn't they have been brooding?