have seen vs have been to see?

[AmieAmie]

what is the difference between the two sentences below?
1. I have just seen her.
2. I have just been to see her.
Could you help me, please?

 

[The Newt]

"I have just been to see her" means that you went somewhere for the specific reason of seeing her. It didn't happen by chance.

 

[Wordy McWordface]

1. I have just seen her.

We don't know where you saw her. It might mean that you simply caught sight of her in the street by chance, for example.

2. I have just been to see her.

This means that you deliberately went to a specific place in order to see her.

For example, if the 'her' is a sick friend or relative, perhaps you made a trip to her house to visit her, or perhaps you visited her in hospital.

Or perhaps the 'her' is your dentist, lawyer or bank manager and you attended an appointment with her at her place of work.