'The popcorn will come at a cost', 'The popcorn isn't free', 'The popcorn Price $ten', 'You should buy the popcorn' or, only, 'The popcorn just isn't free'. The assertion, 'You usually takes your toddler over the flight free of charge' would be in opposition to 'It's important to pay out to choose your toddler over a aircraft' or 'It is not free',