"I have seen her just now" is the correct.
The word "now" isn't used in the past tense, "just" is used in the present perfect tense, "just now" is also used in the present perfect tense.
I'm not sure.
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I would vote for have seen
I have done some digging and here it is:
According to Longman Dictionary
just now (note: see the present tense here = can use perfect tense)
especially BrE (=at the present time)
There are a lot of bargains in the shops just now.
spoken just now (note: simple past progressive)
a) a moment ago
Was that you singing just now?
So in a sense, we can use both ;-)
Both of them are correct!
The action have just happened, then present perfect is right.
I saw her yesterday in the park. (simple past)
I thought that both are same.
:-|
This thread seems to be dragging on.
If you read Tdol's posts 5, 7, 10 and 14, you have the answers.
Hi,
I don't have a clue which one is more acceptable, so let us look at these two sentences as 5-grams:
I have seen her just now.
I saw her just now.
have seen her just now:
Google Ngram Viewer
I saw her just now:
Google Ngram Viewer
Looking at graphs above 'I saw her just now' looks more widely used.
Regards