English verb conjugation
COULD PRICE

Regular verb: price - priced - priced

Affirmation

Simple form	V-ing form
I could price you could price she could price we could price you could price they could price	I could be pricing you could be pricing she could be pricing we could be pricing you could be pricing they could be pricing
Perfect	V-ing perfect
I could have priced you could have priced she could have priced we could have priced you could have priced they could have priced	I could have been pricing you could have been pricing she could have been pricing we could have been pricing you could have been pricing they could have been pricing

Negation

Simple form	V-ing form
I couldn't price you couldn't price she couldn't price we couldn't price you couldn't price they couldn't price	I couldn't be pricing you couldn't be pricing she couldn't be pricing we couldn't be pricing you couldn't be pricing they couldn't be pricing
Perfect	V-ing perfect
I couldn't have priced you couldn't have priced she couldn't have priced we couldn't have priced you couldn't have priced they couldn't have priced	I couldn't have been pricing you couldn't have been pricing she couldn't have been pricing we couldn't have been pricing you couldn't have been pricing they couldn't have been pricing

Interrogative form

Simple form	V-ing form
could I price? could you price? could she price? could we price? could you price? could they price?	could I be pricing? could you be pricing? could she be pricing? could we be pricing? could you be pricing? could they be pricing?
Perfect	V-ing perfect
could I have priced? could you have priced? could she have priced? could we have priced? could you have priced? could they have priced?	could I have been pricing? could you have been pricing? could she have been pricing? could we have been pricing? could you have been pricing? could they have been pricing?

Interro-negative form

Simple form	V-ing form
couldn't I price? couldn't you price? couldn't she price? couldn't we price? couldn't you price? couldn't they price?	couldn't I be pricing? couldn't you be pricing? couldn't she be pricing? couldn't we be pricing? couldn't you be pricing? couldn't they be pricing?
Perfect	V-ing perfect
couldn't I have priced? couldn't you have priced? couldn't she have priced? couldn't we have priced? couldn't you have priced? couldn't they have priced?	couldn't I have been pricing? couldn't you have been pricing? couldn't she have been pricing? couldn't we have been pricing? couldn't you have been pricing? couldn't they have been pricing?