selam every body... long time no see you .. hmmmm ok i´ll ask bout "iken"... can everybody explain to me bout that word ...... i mean how we use it?  and "iken" can i say it is "conjungtion" ?and i hope all of u can give some of sentences include "iken" to me ...neyse is am right if i write " yemek yer iken o geldi"? hepsine cok saol ... endonezyadan selam solye

 -ken simply means when/while

 Yemek yerken o geldi.

He came while I was eating.

 Whats the difference between yemek yerken and yemek yiyerken ?

 There is no such thing as "yiyerken". It is mistyped. "yerken" is correct.

here some examples:

yerken  yerken,   giderken  giterken,  korurken  korurken

saol

 sağol