Learn Farsi: شما هر روز نامه می‌نویسید.

It follows the regular present tense formula! It starts with the prefix می (mi-), followed by the present stem of the verb to write, which is نویس (-nevis-), and ends with ید (-id) to match the subject شما (you).

The English translation says 'a letter', but I do not see a word for 'a' in the Farsi sentence. Why?

In Farsi, a singular noun like نامه (letter) without any extra markers can simply mean 'a letter' in a general sense. Because this sentence is about a daily habit, using just the bare noun is the most natural way to express it.

Why is the word order different from the English translation?

Farsi is a Subject-Object-Verb language, meaning the verb almost always goes at the very end. Here, it starts with the subject شما (you), gives the time and object هر روز نامه (every day letter), and finishes with the verb می‌نویسید (write).

Could می‌نویسید also mean 'you are writing'?

Yes! The present tense with the می prefix covers both general habits ('you write') and actions happening right now ('you are writing'). We know it means 'you write' in this specific sentence because of the time phrase هر روز (every day).