هنوز پست باز است، یا نامه را فردا میفرستیم؟

In باز است, the word است is the Persian copula is. Persian often forms simple descriptive sentences this way:

• باز = open
• است = is

So پست باز است literally has the structure the post is open.

In everyday speech, است is often shortened or dropped in pronunciation, but in writing it is very common to keep it.

هنوز means still or yet. It usually comes before the part of the sentence it modifies.

So in:

• هنوز پست باز است

it means the post office is still open.

Putting هنوز near the front is very natural in Persian when you want to set the time-related idea first.

Here پست most naturally means post office or postal service location, not just mail in the abstract.

In everyday Persian, people often say پست as a short way of referring to the post office, especially when the context makes it clear. A fuller expression would be something like ادارهٔ پست.

So in this sentence, پست باز است means the post office is open.

Yes. باز literally means open.

It is the normal adjective used for a place, shop, office, door, etc. being open:

• مغازه باز است = the shop is open
• در باز است = the door is open

So پست باز است is a completely natural way to say the post office is open.

Persian yes/no questions are very often made just by intonation and context, without adding a special question word.

So:

• هنوز پست باز است؟

can simply mean Is the post office still open?

You may also see آیا at the beginning in more formal Persian:

• آیا هنوز پست باز است؟

But in everyday speech, leaving out آیا is extremely common.

یا means or.

It connects the two alternatives:

• هنوز پست باز است = the post office is still open
• یا = or
• نامه را فردا می‌فرستیم = we send / will send the letter tomorrow

So the whole sentence presents two possibilities: either it is still open, or we send the letter tomorrow.

را marks a specific direct object.

Here, نامه را means the letter as the object of the verb می‌فرستیم (we send).

This is one of the most important features of Persian grammar. When the object is definite or specific, را is commonly used:

• کتاب را می‌خوانم = I am reading the book
• نامه را می‌فرستیم = we are sending / will send the letter

So را does not mean a separate English word by itself; it marks the noun as the direct object.

Persian normally follows subject–object–verb order, especially in neutral sentences.

In the second clause:

• نامه را = the letter
• فردا = tomorrow
• می‌فرستیم = we send

The verb usually comes at or near the end. That is one of the biggest word-order differences from English.

A very literal structure would be:

• the letter tomorrow send-we

which is normal Persian syntax.

می‌فرستیم is the present indicative form, first person plural:

• می‌- = present/imperfective marker
• فرست = verb stem related to sending
• -یم = we

So it literally means we send or we are sending.

However, Persian very often uses the present tense for a future meaning when there is a time word like فردا (tomorrow). So here it is naturally understood as:

• we’ll send the letter tomorrow

Because that is very common and natural in Persian. A present-tense verb plus a future time expression often gives a future meaning.

For example:

• فردا می‌روم = I’ll go tomorrow
• هفتهٔ بعد می‌بینیمش = we’ll see him next week
• نامه را فردا می‌فرستیم = we’ll send the letter tomorrow

Persian does have a future construction, but in ordinary conversation the present tense is often preferred.

Yes, in standard modern spelling, می‌فرستیم with a half-space is preferred.

The prefix می is usually attached to the verb with a half-space:

• می‌فرستم
• می‌فرستی
• می‌فرستیم

You may still see میفرستیم without the half-space, especially in informal typing, older texts, or when someone is not being careful with keyboard formatting. But می‌فرستیم is the standard form.

It is pronounced roughly like mi-ferestim.

A simple breakdown is:

• می = mi
• فر = fer
• ستیم = stim

So the full pronunciation is approximately:

• mi-fe-res-tim

Depending on accent and speed, the vowels may sound a little lighter or shorter, but that rough guide is enough for a learner.

Because Persian verbs already show the subject through their endings.

In می‌فرستیم, the ending -یم tells you the subject is we.

So Persian often omits subject pronouns when they are already clear from the verb:

• می‌روم = I go / I’m going
• می‌روی = you go
• می‌فرستیم = we send

You could add ما for emphasis:

• ما نامه را فردا می‌فرستیم

but it is not necessary.

Yes, it is acceptable and quite natural in modern writing, especially when the sentence has two clear clauses:

• هنوز پست باز است، یا نامه را فردا می‌فرستیم؟

The comma helps separate the alternatives. Persian punctuation is broadly similar to European punctuation in many modern texts, though actual usage can vary by writer and level of formality.

Grammatically, می‌فرستیم by itself could mean we send, we are sending, or we will send, depending on context.

But because of فردا (tomorrow), the most natural interpretation is future:

• or shall we send the letter tomorrow?
• or we’ll send the letter tomorrow
• or should we send the letter tomorrow?

In real use, context and intonation determine the exact nuance. The Persian form is a little flexible in the way many conversational sentences are.