Learn Turkish: Halam telaşla çıktı, ona yetişmem lazımdı. - My aunt left in a rush, I had to catch up to her.

This uses the past necessity structure. First, we take the verb yetişmek (to catch up) and make it a short verbal noun: yetişme. Then, we add the "my" possessive ending to get yetişmem (my catching up). Finally, we add lazımdı (was necessary). Literally, it means "my catching up was necessary," which translates smoothly to "I had to catch up."

Why does yetişmek use ona (to her) instead of onu (her)?

In Turkish, certain verbs require a specific case ending on their object. The verb yetişmek (to catch up to / to reach) always takes the dative case (the -e/-a ending, meaning "to" or "towards"). So you are literally catching up "to" her (ona), not catching her directly as a direct object.

How does the word telaşla break down to mean "in a rush"?

The root word is telaş, which means "rush," "hurry," or "panic." The -la ending is the shortened form of ile, meaning "with." So telaşla literally means "with a rush." Turkish frequently uses this -la/-le ending attached to nouns to create adverbs that describe how an action was done.

Could I use teyzem instead of halam for "my aunt"?