Breakdown of Gramofonda çizik olduğunu biliyorsun, değil mi?
değil
not
olmak
to be
bilmek
to know
mi
question particle (mı/mi/mu/mü)
Questions & Answers about Gramofonda çizik olduğunu biliyorsun, değil mi?
Why is the question tag "değil mi?" used here instead of matching the verb with something like "bilmiyor musun?"
In English, tag questions change depending on the main verb ("are you?", "don't you?", "hasn't she?"). In Turkish, değil mi? is an invariable tag. When you want to say "isn't it so?" or seek confirmation for what you just said, you simply add değil mi? at the end, regardless of the tense, verb, or person in the main sentence.
How does the word "olduğunu" translate to "that there is"?
This is a classic Turkish object clause. We take the verb olmak (to be/exist) and add the participle suffix -dık (which softens to -duğ). Then we add the possessive -u (its being) and the accusative case -nu because this whole idea is the direct object of the verb biliyorsun (you know it). Literally, it translates to "You know its existing."
Why doesn't the word "çizik" (scratch) take any suffixes here?
In this sentence, çizik is the subject of the inner clause (it is the thing that exists on the gramophone). Because we are talking about "a scratch" in general and indefinitely, rather than a specific "the scratch", it stays in its bare, dictionary form without any case markers.
Why is "biliyorsun" in the present continuous tense (-iyor) instead of the simple present/aorist tense?