This is the 12473rd most frequent Portuguese word.
substituíssem
"Substituíssem" means "they might substitute" or "they might replace" in English, in the past subjunctive form.
In this sentence, 'substituíssem' is used as a verb form in the subjunctive mood, indicating a request or hypothetical action.
Os alunos pediram aos professores que substituíssem os livros antigos por novos.
The students asked the teachers to replace the old books with new ones.
Here, 'substituíssem' conveys a recommendation in the past expressed through the subjunctive mood.
Era importante que os gestores substituíssem os equipamentos obsoletos para melhorar o funcionamento.
It was important that the managers replaced the obsolete equipment to improve functionality.
In this example, 'substituíssem' expresses an unreal conditional action or hypothetical scenario still using the subjunctive mood.