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You should answer this question in one go ( at once ).

Are both forms acceptable?

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    "in one go" does not mean the same thing as "at once"
    – Oldcat
    Commented Aug 15, 2014 at 22:54

1 Answer 1

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"At once" means immediately. I assume you mean "all at once". Yes, both all at once and in one go are acceptable and mean similar things, but they are different. "All at once" means simultaneously (so the described action must involve multiple objects), or else suddenly, while "in one go" means the object (not necessarily multiple) was accomplished in a single action (not necessarily suddenly).

Also, in one go is more British than American. Google Ngrams reports that the phrase comprises roughly 0.000027% of text in British English, but only 0.000006% in American English.

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  • Yes, I meant " all at once ". I have learned American Language many years ago and never heard " in one go " till today. T hank you for your explanation. Commented Aug 17, 2014 at 22:15
  • @Ahmetyılmaz You're welcome! If you're satisfied with it, you can accept my answer by clicking the checkmark to the left. (That shows others that it was helpful to you, and it awards points to each of us.)
    – Daniel
    Commented Aug 18, 2014 at 3:19

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