English verb conjugation
CAN VALUE

Regular verb: value - valued - valued

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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