Quando uso whether or if?
As vezes podemos usar qualquer uma das duas palavras, mas existem casos que exigem uma e não a outra. Whether ou If Em frases cujas perguntas possam ser Sim ou Não I am unsure whether I will be attending the party. I am unsure if I will be attending the party. (In this example, the yes/no question is "Am I attending the party?") Janice wondered whether she had unplugged the iron. Janice wondered if she had unplugged the iron. (In this example, the yes/no question is "Did Janice unplug the iron?") whether/if...or...constructions . I would like to know whether it is a true story or fabricated. I would like to know if it is a true story or fabricated. Normalmente se usa weather. Mas pode usar if Somente Whether: Para apresentar duas alternativas: Inform the clerk whether Mark needs a seat. (In this example, the two alternatives are Mark needs a seat and Mark does not need a seat . The clerk is ...