'The popcorn will come at a cost', 'The popcorn just isn't free', 'The popcorn Value $10', 'You have to pay for the popcorn' or, only, 'The popcorn just isn't free'. The statement, 'You can take your child about the flight free of charge' can be in opposition to 'You must spend to get your child with a aircraft' or 'It isn't really free', or inform