English verb conjugation
COULD BOO-HOO

Regular verb: boo-hoo - boo-hooed - boo-hooed

Affirmation

Simple form	V-ing form
I could boo-hoo you could boo-hoo he could boo-hoo we could boo-hoo you could boo-hoo they could boo-hoo	I could be boo-hooing you could be boo-hooing he could be boo-hooing we could be boo-hooing you could be boo-hooing they could be boo-hooing
Perfect	V-ing perfect
I could have boo-hooed you could have boo-hooed he could have boo-hooed we could have boo-hooed you could have boo-hooed they could have boo-hooed	I could have been boo-hooing you could have been boo-hooing he could have been boo-hooing we could have been boo-hooing you could have been boo-hooing they could have been boo-hooing

Negation

Simple form	V-ing form
I couldn't boo-hoo you couldn't boo-hoo he couldn't boo-hoo we couldn't boo-hoo you couldn't boo-hoo they couldn't boo-hoo	I couldn't be boo-hooing you couldn't be boo-hooing he couldn't be boo-hooing we couldn't be boo-hooing you couldn't be boo-hooing they couldn't be boo-hooing
Perfect	V-ing perfect
I couldn't have boo-hooed you couldn't have boo-hooed he couldn't have boo-hooed we couldn't have boo-hooed you couldn't have boo-hooed they couldn't have boo-hooed	I couldn't have been boo-hooing you couldn't have been boo-hooing he couldn't have been boo-hooing we couldn't have been boo-hooing you couldn't have been boo-hooing they couldn't have been boo-hooing

Interrogative form

Simple form	V-ing form
could I boo-hoo? could you boo-hoo? could he boo-hoo? could we boo-hoo? could you boo-hoo? could they boo-hoo?	could I be boo-hooing? could you be boo-hooing? could he be boo-hooing? could we be boo-hooing? could you be boo-hooing? could they be boo-hooing?
Perfect	V-ing perfect
could I have boo-hooed? could you have boo-hooed? could he have boo-hooed? could we have boo-hooed? could you have boo-hooed? could they have boo-hooed?	could I have been boo-hooing? could you have been boo-hooing? could he have been boo-hooing? could we have been boo-hooing? could you have been boo-hooing? could they have been boo-hooing?

Interro-negative form

Simple form	V-ing form
couldn't I boo-hoo? couldn't you boo-hoo? couldn't he boo-hoo? couldn't we boo-hoo? couldn't you boo-hoo? couldn't they boo-hoo?	couldn't I be boo-hooing? couldn't you be boo-hooing? couldn't he be boo-hooing? couldn't we be boo-hooing? couldn't you be boo-hooing? couldn't they be boo-hooing?
Perfect	V-ing perfect
couldn't I have boo-hooed? couldn't you have boo-hooed? couldn't he have boo-hooed? couldn't we have boo-hooed? couldn't you have boo-hooed? couldn't they have boo-hooed?	couldn't I have been boo-hooing? couldn't you have been boo-hooing? couldn't he have been boo-hooing? couldn't we have been boo-hooing? couldn't you have been boo-hooing? couldn't they have been boo-hooing?