None of those phrases is quite right, I'm afraid. 'Give way', in your first sentence, is mainly used for traffic situations (e.g. when one vehicle gives way to another) and the other three don't really make any sense.

It depends on the exact situation, of course. But let's say you are on crowded bus, for example, and you need to get off but someone is standing in your way, you might say:

Excuse me..

.. could I just get past?

...I need to get past (you).

.. could you just let me get past?

No, you can't use sentences like that, because they aren't really correct.

You can use something like: '' Can you please let me pass?'' 

or "Could you please move so I can pass?'' . You can use these sentences if you want to move forward and someone is standing in your way, but ''Excuse me'' works for anything, if you have a question or you step on someone. You can also use ''Sorry, could you ... '' . Hope i helped you.

If I were u, I would just tell them that I'm in the middle of something right now or I'd like to haddle this by myself in the first place if someone seems never to stop whatever they're doing.  I could catch them later if they'd like to. Usually it works, they'll just let me get back to my work or whatever. And I think it's not impolite.:)

Oops! I thought it was the word "stay"..Now I notice it's "stand"..Awkward.

Thank you all guys. it happened today when I had my lunch. The guy next to my table wanted to move out but there was a foreigner standing on the way and talking to another guy. For one or two seconds he just didn't notice the words. it call me this question.