Learn Turkish: Patron hiçbir iddiayı yalanlamamış. - The boss apparently didn't deny any claim.

Let's break it down! The base verb is yalanlamak (to deny). First, we drop the -mak and add the negative suffix -ma, giving us yalanlama-. Then, we add the inferential past tense suffix -mış. We use -mış instead of the regular past tense -dı to show that we didn't see this happen ourselves—we heard about it from someone else or inferred it.

If hiçbir means "no" or "not any", why is the verb also negative?

Turkish uses double negatives! Words like hiçbir (none/not any), hiç kimse (nobody), and hiç (never/nothing) always require a negative verb. So, literally, this sentence says "The boss didn't deny not any claim," which simply translates to standard English as "didn't deny any claim."

Why does iddia (claim) have the -(y)ı suffix at the end?

That is the definite accusative case. When hiçbir modifies a direct object (the thing being acted upon—in this case, the thing being denied), that object takes the accusative case suffix. Because iddia ends in a vowel, we add the buffer letter -y- before the suffix -ı, making it iddiayı.

Is the verb yalanlamak related to the word yalan (lie)?