Learn Farsi: راننده مسافرو زود می‌رسونه. - The driver drops off the passenger early.

The base word is مسافر (passenger), which ends in a consonant. In colloquial Tehrani Farsi, the formal object marker را becomes a simple ـو (-o) sound added directly to the end of words that finish with a consonant.

If we removed the ـو from مسافرو, how would the meaning change?

The object marker makes a direct object specific. With it, the sentence means the driver drops off the passenger. Without it, the sentence would mean the driver drops off a passenger or just transports passengers in general.

Where does the verb می‌رسونه come from?

It comes from the formal verb رساندن (to deliver or drop off), which is the causative form of رسیدن (to arrive). In spoken Tehrani, the 'ān' sound often shifts to 'un', making the present stem رسون instead of رسان.

Can زود mean both 'early' and 'quickly'?

Yes! Depending on the context, زود can mean either 'early' or 'fast/quickly'. In this sentence, dropping the passenger off 'early' or 'quickly' both make sense, implying the driver gets them to their destination in a short amount of time.