'The popcorn arrives at a cost', 'The popcorn is not free', 'The popcorn Price $10', 'You will need to pay for the popcorn' or, simply just, 'The popcorn isn't free'. The assertion, 'You usually takes your little one on the flight free of cost' can be in opposition to 'You will need to pay to just take your toddler on a aircraft' or 'It is not free