Where have been to

[user_gary]

Where do you sit on?

Where have you been to so far?

Are the above sentences correct?

Please help me.

[svartnik]

Where do you sit on?

Where have you been to so far?

Are the above sentences correct?

Please help me.

Not incorrect, but the preps are redundant.

[Anglika]

Where do you sit on?

Where have you been to so far?

Are the above sentences correct?

Please help me.

What do you sit on?

To me the second sentence asks for information about what location(s) you have been to, so the preposition "to" is required

[user_gary]

Thank you Anglika and Svartnik.
I think, you mean, where do you sit on, or where do you sit? is wrong. And the "What do you sit on"? is correct.

Am I right?

Please help me.

[Anglika]

Where do you sit?

What do you sit on?

Where do you sit on?