English verb conjugation
COULD VALUE

Regular verb: value - valued - valued

Affirmation

Simple form	V-ing form
I could value you could value she could value we could value you could value they could value	I could be valuing you could be valuing she could be valuing we could be valuing you could be valuing they could be valuing
Perfect	V-ing perfect
I could have valued you could have valued she could have valued we could have valued you could have valued they could have valued	I could have been valuing you could have been valuing she could have been valuing we could have been valuing you could have been valuing they could have been valuing

Negation

Simple form	V-ing form
I couldn't value you couldn't value she couldn't value we couldn't value you couldn't value they couldn't value	I couldn't be valuing you couldn't be valuing she couldn't be valuing we couldn't be valuing you couldn't be valuing they couldn't be valuing
Perfect	V-ing perfect
I couldn't have valued you couldn't have valued she couldn't have valued we couldn't have valued you couldn't have valued they couldn't have valued	I couldn't have been valuing you couldn't have been valuing she couldn't have been valuing we couldn't have been valuing you couldn't have been valuing they couldn't have been valuing

Interrogative form

Simple form	V-ing form
could I value? could you value? could she value? could we value? could you value? could they value?	could I be valuing? could you be valuing? could she be valuing? could we be valuing? could you be valuing? could they be valuing?
Perfect	V-ing perfect
could I have valued? could you have valued? could she have valued? could we have valued? could you have valued? could they have valued?	could I have been valuing? could you have been valuing? could she have been valuing? could we have been valuing? could you have been valuing? could they have been valuing?

Interro-negative form

Simple form	V-ing form
couldn't I value? couldn't you value? couldn't she value? couldn't we value? couldn't you value? couldn't they value?	couldn't I be valuing? couldn't you be valuing? couldn't she be valuing? couldn't we be valuing? couldn't you be valuing? couldn't they be valuing?
Perfect	V-ing perfect
couldn't I have valued? couldn't you have valued? couldn't she have valued? couldn't we have valued? couldn't you have valued? couldn't they have valued?	couldn't I have been valuing? couldn't you have been valuing? couldn't she have been valuing? couldn't we have been valuing? couldn't you have been valuing? couldn't they have been valuing?