Learn Farsi: تو راننده‌ای.

In Farsi, the present tense of the verb "to be" often attaches right to the end of a word. For to (you, singular), that attached ending is -i. Here, it attaches to rānande (driver) to make rānande-i.

Why is the ending spelled as ای instead of joining a single letter directly to rānande?

The word rānande ends in a silent letter that makes an "e" sound. Since the verb ending -i is also a vowel, Farsi adds ای to act as a bridge. This ensures it is pronounced clearly as rānande-i without the vowels crashing into each other.

Could I just say rānande-i and leave out the word to (you)?

Yes, absolutely! Because the ending -i already tells us the subject is "you," the pronoun to is completely optional. Including it and saying to rānande-i just puts a little more emphasis on the word "you."

Why isn't there a word for "a" in this sentence, like "a driver"?

When talking about someone's job, profession, or identity, Farsi usually skips the word for "a" or "an." You literally say "You are driver," and the "a" is naturally added when translating into natural English.