if you were

I think it's better to say "if you were them" or "if you were in their position" (but I'm not a native speaker)

Welcome to the Forums, Malinka!

I would add just a bit to your "correct" answer.
Your suggestion about 'position' is very good advice! As to the other, "they", technically is the correct form, but "them" is much more common (in the States, at least).

Technically correct. OK. I understand.
By the way, about 'position/place,'  is the plural version 'their positions/places' unacceptable?

Sorry to interrupt.

If you were she/her

Which is natural?

If you were her...
It's them! Open the door...
They are not better than us...
It was him who suggested it.

***Knock knock!***
- Who is it?
...It is I.
- Oh my, another English teacher.

LOL

Haha. Thanks, kooyen.

And where is my 'plural-OK-or-not' question?? 

Oops, I missed that. I think you usually use the singular, because people usually use those kinds of expressions to talk about a general situation, a position shared by several people that is the same for all of them. So I would take "position" as a way to say "situation".
People over there are very poor. If I were in their position... (one situation: they're poor)
And I thi

KooyeenIt was him who suggested it.

It was he who suggested it.

I don't think 'him' is correct.

Who suggested it? He suggested it.

Hence, it should be It was he who suggested it.

Yoong LiatI don't think 'him' is correct.

Who suggested it? He suggested it.

Hence, it should be It was he who suggested it.

Yes, I think you will sometimes hear the subject pronouns used that way in formal registers. But New2Grammar asked which was more natural, and formal registers are usually connected with stiffness, not