もうずいぶん昔のことだから覚えていないの英語

have a long memory

I don't really remember.

My memory doesn't go back so far.

It was such a long time ago and [that] I only have a vague memory of it.

I do not remember well, but...

I don't remember what happened anymore.

I don't recall.

I remember nothing

I don't remember this from yesterday.

He says he is not guilty

I hardly remember yesterday.

There aren't many people who remember that.

I only remember pieces of that time.

as long ago as anyone can remember

We must learn little by little.

I don't remember anything about that.

I don't remember that at all.

I don't remember anything.

I don't remember that.

He persists in asserting his innocence.

I remembered my good old days.

I don't recall.

I still remember that!

be unable to remember

It seems like light-years ago.

a distant memory

It had been a long time since we met and a lot of memories were revived.

of a person, the state of being attracted to something because it reminds him/her of an old memory

don't remember

I can't remember.