Preposições - Preposições de troca e substituição

used to indicate a transaction or trading of one thing in return for another

por

used to express a rate of exchange between two quantities

para

used to indicate the exchange, substitution, trade, or compensation of one item, service, or benefit for another

contra

as a transaction where one thing is given or done to receive another as compensation or consideration

em troca de

used to indicate an action, item, or favor given or done as a compensation for something else

em troca de

as a substitute for someone or something else

em vez de

in replacement of something that is typically expected or required

em vez de

as a substitute for someone or something

em vez de

used to indicate a preference between two alternatives, often suggesting one option is chosen over the other

em vez de

used to express the act of giving up one's position, role, or opportunity to someone else

a favor de