Questions & Answers about Parkta birçok çocuk oynuyor.
Why is it parkta and not parkda?
The suffix for 'in', 'on', or 'at' is usually -da or -de. However, because park ends in a hard, voiceless consonant (the letter k), the suffix changes to match it, becoming -ta. This is a rule called consonant harmony.
Since the sentence says 'many children', shouldn't it be çocuklar?
In English we say 'many children', but in Turkish, nouns stay singular after words that express a quantity. Since birçok already tells us there are 'many', the word çocuk does not need the plural suffix -lar.
The dictionary form of the verb is oynamak (to play). Why is it oynuyor instead of oynayor?
When a verb stem ends in a or e (like oyna) and you add the present continuous suffix -yor, that ending vowel narrows. The a in oyna changes to u to follow vowel harmony rules, creating oynuyor.
Should the verb have a plural ending like oynuyorlar since multiple children are playing?