Learn Turkish: Parka kadar yürüyorum.

The -a is the dative case suffix, which tells us the direction of an action, like "to" or "towards". It attaches to park to make parka (to the park). We use -a instead of -e because the vowel in park is an 'a', which is a back vowel and dictates the ending based on Turkish vowel harmony rules.

Does kadar always need the -a or -e ending on the word before it?

Yes! When kadar means "up to", "as far as", or "until" a certain place or time, the noun right before it must take the dative ("to") ending. That is why this sentence uses parka kadar instead of just park kadar.

The translation says "I walk", but doesn't the -yor suffix mean "I am walking"?

Yes, yürüyorum literally means "I am walking". However, in Turkish, the present continuous tense (-yor) is used much more broadly than in English. It is often used to describe daily routines or general facts, so it frequently translates to the English simple present ("I walk").

Why doesn't the verb have a linking vowel before the -yor suffix?