Questions & Answers about Köşedeki heykel çok nadir.
How does the -ki suffix work in köşedeki?
Does the -ki suffix change to match vowel harmony here?
No. Unlike most Turkish suffixes (like how the locative suffix changes between -de and -da depending on the word), -ki is a major exception. It almost always stays exactly as -ki, regardless of the vowels in the word before it.
Could I just say "Köşede heykel çok nadir" without the -ki?
Dropping -ki changes the grammar and meaning. Köşede heykel çok nadir translates closer to "In the corner, a statue is very rare." By adding -ki, you tie the location directly to the object, answering the question "which statue?" and making it "The statue in the corner".
Where is the word for "is" in this sentence?
In Turkish, the "to be" verb (like "is" or "are") is often invisible for the third person (he, she, it). You could write this formally as Köşedeki heykel çok nadirdir using the -dir suffix for "is", but in everyday Turkish, simply leaving it off at the end of the sentence is perfectly normal and correct.