Questions & Answers about Onun içinde ne var?
Why is there an n in içinde?
The word breaks down into iç (interior), the 3rd person possessive -i (its), and the locative case -de (in/at). Whenever you attach a case suffix (like -de) right after a 3rd person possessive suffix, you must use the buffer letter -n- to separate them, not -y-. This makes it iç-i-n-de.
Why does the sentence use Onun (its) to say "inside it"?
In Turkish, position words like iç (inside) act as nouns. To say "inside it", Turkish literally says "at its inside". This requires a possessive relationship: onun (its) and iç-i (inside). Adding the locative case gives us onun içinde (at its inside).
Does the word Onun also use the n buffer letter?
Yes! The root pronoun is o (he/she/it). When you add the genitive suffix -un to make it "his", "her", or "its", you need a buffer letter to prevent two vowels from touching. The pronoun o always uses the buffer -n- before case endings, giving us o-n-un.
Why do we use var here instead of a "to be" ending?