C3O1S1T1
6 points
COST is validvalid
to estimate a price for production of [v COST, COSTED, COSTING, COSTS]
to estimate a price for production of [v -ED, -ING, -S]
to estimate a price for production of [v COST, COSTED, COSTING, COSTS]
to estimate a price for production of [v -ED, -ING, -S]