.....this is true, I have met several - but you still don´t look Turkish! 

I know   

I like this thread!

You are welcome = ´You´re welcome´ not ´Your welcome´.  ´Your welcome´ means the welcome that belongs to you!!  Equally for ´You´re right´, ´You´re wrong´ and any other contraction of ´You are´.  If you remember that the apostrophe is replacing the ´a´ in ´are´ you shouldn´t (!) go wrong. 

[it´s a relief getting that one off my chest ]

How ´bout of in:

should´ve ... = should of ...

Not something that I do but I see natives doing it.

I think I should start one about Turkish spelling mistakes

(Although there is http://www.turkishclass.com/forumTitle_38902, it was in Turkish  

 me to

Also I am tired of those spell-checkers tuned for American English that keeps telling me there is something wrong with my spelling when I prefer -ise over -ize:

organise

memoise

etc

Yes! Yes!    - who do these Americans think they are??     And what have they got against the letter ´u´ (eg color, flavor, honor)???

 Yes i have a Turkish friend who is ginger

 how about it

should´ve== should have

Exactly!  Si++ was commenting on the mistake he has often seen native speakers making of writing ´should of´ for ´should have´

You should of realised!!!!