I know that sentences like (a) are grammatical and those like (b) are ungrammatical.
How about (c)? Is it correct?
I am wondering about this because I think that ‘Yes’ means ‘Yes, I have been to Europe’ (present perfect tense).
I went to Europe three years ago. --- (a)
I have been to Europe three years ago. --- (b)
John: Have you ever been to Europe?
Mary: Yes, once, three years ago. --- (c)
Koji from Japan How about (c)? Is it correct? Yes, once, three years ago.
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Koji from JapanHow about (c)? Is it correct?
...
Yes, once, three years ago. --- (c)
We would paraphrase (c) as
Yes, I have been to Europe once, (but that was) three years ago.
Koji from JapanI am wondering about this
It's something I've wondered about, too,