English verb conjugation
COULD VALUE

Regular verb: value - valued - valued

Affirmation

Simple form	V-ing form
I could value you could value he could value we could value you could value they could value	I could be valuing you could be valuing he 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 he 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 he 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 he 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 he 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 he 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 he 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 he value? could we value? could you value? could they value?	could I be valuing? could you be valuing? could he 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 he 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 he 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 he 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 he 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 he 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 he have been valuing? couldn't we have been valuing? couldn't you have been valuing? couldn't they have been valuing?