Usages of correto
Acho correto proibir o telemóvel, pois assim ninguém se distrai quando precisamos falar.
I think it's correct to forbid the cellphone, because that way nobody gets distracted when we need to talk.
O plano está correto.
The plan is correct.
Ontem fui ao supermercado e não recebi o troco correto.
Yesterday I went to the supermarket and didn’t receive the correct change.
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