من الان دارم به برادرم زنگ میزنم.

Yes — in many cases, من is optional because the verb ending -م already shows that the subject is I.

So:

• دارم ... می‌زنم = I am ... calling
• من دارم ... می‌زنم = I am ... calling

Using من can add a little emphasis, clarity, or contrast, such as:

• من دارم به برادرم زنگ می‌زنم، نه تو.
  I’m calling my brother, not you.

In everyday Persian, speakers often drop من unless they want emphasis.

الان means now / right now.

It makes the time reference very clear: the action is happening at this moment.

So in this sentence, الان reinforces the idea of an action in progress:

• من الان دارم به برادرم زنگ می‌زنم.
• I am calling my brother right now.

Without الان, the sentence still works:

• من دارم به برادرم زنگ می‌زنم.

That still means I’m calling my brother, but الان makes it more explicitly right now.

دارم is from the verb داشتن (to have), but in this pattern it helps form the present progressive, similar to English am/is/are ... -ing.

Structure:

• دارم = I am
• می‌زنم = I hit / I ring / I call in this compound expression

Together:

• دارم ... می‌زنم = I am ... calling

This is a very common way in modern Persian to show an action that is happening right now.

So:

• دارم می‌خوانم = I am reading
• دارم می‌نویسم = I am writing
• دارم زنگ می‌زنم = I am calling

Good question. In Persian, the normal present/imperfective form of the main verb usually takes می-. When Persian forms the present progressive with داشتن, the main verb still keeps می-.

So the pattern is:

• دارم + می‌ + present stem + personal ending

In this sentence:

• دارم = progressive auxiliary
• می‌زنم = imperfective/present form of زدن

This is just how the structure works in Persian. It may feel repetitive to an English speaker, but it is normal.

Historically, زنگ means bell or ring, and زدن is a very common verb with many meanings, including to hit, to strike, and in many compound verbs, much more than that.

In زنگ زدن or زنگ می‌زنم, the whole expression means:

• to call
• to ring
• to phone

So you should learn زنگ زدن as a set expression, not by translating each word literally every time.

Examples:

• بهش زنگ بزن. = Call him/her.
• دیروز به مادرم زنگ زدم. = I called my mother yesterday.

With the verb زنگ زدن (to call / to phone), the person receiving the call is usually marked with به.

So:

• به برادرم زنگ می‌زنم = I’m calling my brother
• literally something like I ring to my brother

This is just the normal Persian pattern for this verb.

Other examples:

• به دوستم زنگ زدم. = I called my friend.
• به او زنگ بزن. = Call him/her.

So even though English says call someone with no preposition, Persian usually says call to someone with به.

برادرم means my brother.

It is made of:

• برادر = brother
• -م = my

So:

• برادرم = my brother

This -م is a possessive ending attached directly to the noun.

Some similar forms:

• دوستم = my friend
• مادرم = my mother
• کتابم = my book

So in this sentence, به برادرم means to my brother.

Because they do two different jobs.

1. In برادرم, -م means my

   • برادر = brother
   • برادرم = my brother

2. In دارم and می‌زنم, -م marks the subject I

   • دارم = I have / I am having
   • می‌زنم = I hit / I call

So the same sound -م can appear in different roles:

• attached to a noun: my
• attached to a verb: I

This is very common in Persian.

Persian tends to use Subject – Time – Object/Complement – Verb.

In this sentence:

• من = subject
• الان = time
• به برادرم = complement
• زنگ می‌زنم = verb phrase

So the sentence follows a normal Persian pattern, with the main verb at or near the end.

That final-verb tendency is one of the biggest differences from English.

Yes, both can be omitted depending on context.

You can say:

• الان دارم به برادرم زنگ می‌زنم.
• دارم به برادرم زنگ می‌زنم.
• به برادرم زنگ می‌زنم.

These are all possible, but the nuance changes a little:

• من adds emphasis or clarity
• الان adds right now
• دارم strongly marks the action as in progress

The full version sounds very explicit and clear.

Yes, you may hear that, especially in everyday speech, and it can still mean something like I’m calling my brother now depending on context.

However, دارم ... می‌زنم makes the progressive meaning more explicit:

• دارم به برادرم زنگ می‌زنم = I am in the middle of calling my brother
• به برادرم زنگ می‌زنم can sometimes be more general, depending on context, like I call / I’m calling

So if you want a clear right now, currently in progress meaning, using دارم is very helpful.

In standard Persian spelling, it is usually written with a half-space:

• می‌زنم

Not:

• می زنم as a full space in careful modern writing
• میزنم as a fully joined form in standard writing

That said, in informal typing, many people write میزنم because half-spaces are sometimes inconvenient on keyboards. But the standard form is:

• می‌زنم

The same applies to many verbs:

• می‌خورم
• می‌روم
• می‌خوانم

A careful pronunciation would be roughly:

• man al-ān dāram be barādaram zang mizanam

A few notes:

• الان is often pronounced close to alān
• دارم sounds like dāram
• برادرم is roughly barādaram
• زنگ is zang
• می‌زنم is mizanam

In natural speech, some sounds may get reduced slightly, but that rough pronunciation is a good starting point.

Yes, it is completely normal and very common.

زنگ زدن is one of the standard everyday ways to say:

• to call
• to phone
• to ring someone

It works well in spoken Persian and ordinary written Persian.

If you are talking about making a phone call, زنگ زدن is one of the most useful expressions to learn.

In normal usage here, it means I call my brother.

Because زنگ زدن به کسی is a fixed expression, Persian speakers understand به برادرم as the person receiving the call.

So in this sentence, the meaning is not ambiguous in ordinary context. It is understood as:

• I’m calling my brother
• I’m phoning my brother

The full dictionary form is زنگ زدن.

This is a compound verb, made of:

• زنگ
• زدن = infinitive of the light verb

In the sentence, the inflected part is from زدن:

• می‌زنم = I call / I ring

So when looking it up in a dictionary, you would usually search for:

• زنگ زدن

not just زنگ and not only می‌زنم.