English verb conjugation
COULD EXTOL

Regular verb: extol - extolled - extolled

Affirmation

Simple form	V-ing form
I could extol you could extol she could extol we could extol you could extol they could extol	I could be extolling you could be extolling she could be extolling we could be extolling you could be extolling they could be extolling
Perfect	V-ing perfect
I could have extolled you could have extolled she could have extolled we could have extolled you could have extolled they could have extolled	I could have been extolling you could have been extolling she could have been extolling we could have been extolling you could have been extolling they could have been extolling

Negation

Simple form	V-ing form
I couldn't extol you couldn't extol she couldn't extol we couldn't extol you couldn't extol they couldn't extol	I couldn't be extolling you couldn't be extolling she couldn't be extolling we couldn't be extolling you couldn't be extolling they couldn't be extolling
Perfect	V-ing perfect
I couldn't have extolled you couldn't have extolled she couldn't have extolled we couldn't have extolled you couldn't have extolled they couldn't have extolled	I couldn't have been extolling you couldn't have been extolling she couldn't have been extolling we couldn't have been extolling you couldn't have been extolling they couldn't have been extolling

Interrogative form

Simple form	V-ing form
could I extol? could you extol? could she extol? could we extol? could you extol? could they extol?	could I be extolling? could you be extolling? could she be extolling? could we be extolling? could you be extolling? could they be extolling?
Perfect	V-ing perfect
could I have extolled? could you have extolled? could she have extolled? could we have extolled? could you have extolled? could they have extolled?	could I have been extolling? could you have been extolling? could she have been extolling? could we have been extolling? could you have been extolling? could they have been extolling?

Interro-negative form

Simple form	V-ing form
couldn't I extol? couldn't you extol? couldn't she extol? couldn't we extol? couldn't you extol? couldn't they extol?	couldn't I be extolling? couldn't you be extolling? couldn't she be extolling? couldn't we be extolling? couldn't you be extolling? couldn't they be extolling?
Perfect	V-ing perfect
couldn't I have extolled? couldn't you have extolled? couldn't she have extolled? couldn't we have extolled? couldn't you have extolled? couldn't they have extolled?	couldn't I have been extolling? couldn't you have been extolling? couldn't she have been extolling? couldn't we have been extolling? couldn't you have been extolling? couldn't they have been extolling?