Learn Turkish: Markaların çoğu yeni bir ambalaj tasarladı. - Most of the brands designed a new packaging.

Çok means "a lot" or "many", but to say "most of" something, we must use it as a pronoun with a possessive suffix. The word çok gets the suffix -u (meaning "its" or "their"), and the hard k changes to a soft ğ, becoming çoğu.

Why does "markalar" (brands) have the "-ın" suffix in "markaların"?

To say "most of the brands", Turkish uses a possessive structure, literally translating to "the brands' most". The suffix -ın is the genitive (possessive) ending added to markalar (brands), linking it directly to çoğu.

Why is the word order "yeni bir ambalaj" instead of "bir yeni ambalaj"?

In Turkish, when you have a descriptive adjective (like yeni, new) and the indefinite article bir (a/an), the adjective almost always comes before bir. So the structure is literally "new a packaging".

Since "markaların çoğu" refers to multiple brands, why doesn't the verb "tasarladı" have a plural "-lar" ending?

In Turkish, when the subject is not human (like brands) or when it includes a word of quantity (like çoğu, most), the verb usually stays in the singular form. Because of this rule, we use tasarladı instead of tasarladılar.