Qual a diferença entre "request" e "ask"?

No sentido de pedido.. Quando usar cada uma dessas palavras?

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Adicionando informação aos comentários anteriores:

"Request" pode ser usado como verbo ou substantivo.
Exemplo1: "Here is your request, sir." ["Request" como substantivo]
Exemplo2: "The police requested her to accompany them." ["Request" como verbo]

Já "ask" é usado como verbo somente.
Exemplo1: "I asked him to pass me the salt."
Exemplo2: "This is my ask to leave early". (FRASE ERRADA! Não podemos usar "ask" na forma de substantivo)

Take care.
JJ out.
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6 48 1.1k
Essentially "request" would be more a official and formal way to ask something.
Sometimes you can translate the former as "solicitar" and the latter as "pedir".

So, request is also a term for "requisitar/fazer petição/requerer" etc.
3 18 183
(Complementando o Paulo.) Olá Lidiane, essas são palavras amplamente sinônimas em muitos casos. Você tem algum contexto no qual surgiu a dúvida?

Por exemplo, se alguém diz

That's not what I requested.

Qual destas seria uma alternativa razoável?

That's not what I asked. (ou)
That's not what I asked for.
6 48 1.1k
Agree Mr. Jean. Only a surprise, ask is beggining slowly to be "nouned" these days. It already made to the Cambridge, MacMillan and Oxford dictionaries, to name a few. I discovered that today, it´s interesting how we learn things here.



Being former intrepid (childless) travellers we hadn't realised how much of a big ask it was to travel with a 1 year old and a 3 year old from Cairo to Lucca in one day or to see the highlights of Florence in a day.





http://www.macmillandictionaryblog.com/ ... -a-big-ask

http://www.ldoceonline.com/dictionary/ask_2
a big ask
a situation in a sports competition when someone needs to get a lot of points or do something very difficult in order to win :
We need to win the next three games. It's a big ask, but I'm confident we can do it.




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(here the person is asking a favour, and let others know, beforehand, that he/she is going to be very indebted to whom answer it.)
http://www.thaivisa.com/forum/topic/614 ... -toenails/
A Big Ask: Anyone Know A Pedicurist Who Knows How To Prevent Ingrown Toenails?




(here to mean that it was a big feat, something very difficult to do/achieve)
www.macmillandictionary.com/dictionary/british/ask_34
It was a big ask, but in 1964 Fraser became the only swimmer to win the same event at three successive Olympics.



SEN Magazine - Changing behaviour: a big ask?
senmagazine.co.uk/articles/858-can-surveying...
Changing behaviour: a big ask? Details Created on Thursday, 09 February 2012 15:45 Glen Williams looks at how surveying pupils’ attitudes can help improve behaviour ...



Here in the same vein, the person asking let others know he/she is going to be highly indebted, in Portuguese we could perhaps say here "eu sei que é pedir demais, mas ...(e segue a pergunta/favor em questão...)
http://excel.questionfor.info/q_microso ... 23641.html
A big ask, but if anyone can help, it would be great.