I recently came across an article printed in our school magazine, which read, "I studied that a year ago". But, doesn't "I studied that a year back" sound better?
What's your say?
I would think that "a year ago" is the phrase normally used. Looking at the data reported by the Corpus of Contemporary American, I can create the following chart.
"Year ago" and "years ago" are the most used phrases, at least in American English.
Looking at what reported by the British National Corpus, I obtain the following data.
"Year ago" and "years ago" are still the most used phrases, compared to "year back" and "years back".
A year ago would be the regular way to say it; a year back is a colloquial way of saying the same.
It would be proper to say ago when it is time specific, otherwise, back.
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