English verb conjugation
COULD HIBERNATE

Regular verb: hibernate - hibernated - hibernated

Affirmation

Simple form	V-ing form
I could hibernate you could hibernate he could hibernate we could hibernate you could hibernate they could hibernate	I could be hibernating you could be hibernating he could be hibernating we could be hibernating you could be hibernating they could be hibernating
Perfect	V-ing perfect
I could have hibernated you could have hibernated he could have hibernated we could have hibernated you could have hibernated they could have hibernated	I could have been hibernating you could have been hibernating he could have been hibernating we could have been hibernating you could have been hibernating they could have been hibernating

Negation

Simple form	V-ing form
I couldn't hibernate you couldn't hibernate he couldn't hibernate we couldn't hibernate you couldn't hibernate they couldn't hibernate	I couldn't be hibernating you couldn't be hibernating he couldn't be hibernating we couldn't be hibernating you couldn't be hibernating they couldn't be hibernating
Perfect	V-ing perfect
I couldn't have hibernated you couldn't have hibernated he couldn't have hibernated we couldn't have hibernated you couldn't have hibernated they couldn't have hibernated	I couldn't have been hibernating you couldn't have been hibernating he couldn't have been hibernating we couldn't have been hibernating you couldn't have been hibernating they couldn't have been hibernating

Interrogative form

Simple form	V-ing form
could I hibernate? could you hibernate? could he hibernate? could we hibernate? could you hibernate? could they hibernate?	could I be hibernating? could you be hibernating? could he be hibernating? could we be hibernating? could you be hibernating? could they be hibernating?
Perfect	V-ing perfect
could I have hibernated? could you have hibernated? could he have hibernated? could we have hibernated? could you have hibernated? could they have hibernated?	could I have been hibernating? could you have been hibernating? could he have been hibernating? could we have been hibernating? could you have been hibernating? could they have been hibernating?

Interro-negative form

Simple form	V-ing form
couldn't I hibernate? couldn't you hibernate? couldn't he hibernate? couldn't we hibernate? couldn't you hibernate? couldn't they hibernate?	couldn't I be hibernating? couldn't you be hibernating? couldn't he be hibernating? couldn't we be hibernating? couldn't you be hibernating? couldn't they be hibernating?
Perfect	V-ing perfect
couldn't I have hibernated? couldn't you have hibernated? couldn't he have hibernated? couldn't we have hibernated? couldn't you have hibernated? couldn't they have hibernated?	couldn't I have been hibernating? couldn't you have been hibernating? couldn't he have been hibernating? couldn't we have been hibernating? couldn't you have been hibernating? couldn't they have been hibernating?