لطفا گوشی را شارژ کن؛ من باید آدرس بیمارستان را برای پرستار بفرستم.

را marks a specific direct object. In this sentence, the speaker means a particular phone and a particular address, so Persian says گوشی را and آدرس بیمارستان را.

A useful way to think about it:

• گوشی را شارژ کن = charge the/that phone
• آدرس بیمارستان را بفرستم = send the hospital address

English does not have a separate word like this, so learners often need time to get used to it.

In careful or formal pronunciation, را is râ. In everyday spoken Persian, it is very often pronounced ro.

So:

• written: گوشی را
• often spoken: گوشی رو

Both are the same grammar point. The difference is mainly spoken vs. more careful/formal pronunciation.

Not by itself. شارژ is a borrowed word, and Persian commonly turns such words into verbs by adding کردن.

So:

• شارژ کردن = to charge
• شارژ کن = charge! (informal singular command)

This is a very common Persian pattern:

• چک کردن = to check
• تمیز کردن = to clean
• کنسل کردن = to cancel

So شارژ کن literally works like do charging.

کن is the informal singular imperative. It is used when speaking to one person in a familiar way.

• کن = do! / charge! (informal, singular)
• کنید = do! / charge! (polite or plural)

So this sentence is addressing one person somewhat casually:

• لطفا گوشی را شارژ کن

A more polite version would be:

• لطفا گوشی را شارژ کنید

Also, لطفا softens the command, but it does not by itself make the verb formal.

من is not strictly necessary. Persian often drops subject pronouns when the verb already shows the subject.

So:

• من باید ... بفرستم
• باید ... بفرستم

Both can work. Including من adds emphasis or clarity: I need to send it.

Also, باید itself does not change with the subject. The person is shown by the following verb:

• من باید بفرستم = I must send
• تو باید بفرستی = you must send
• او باید بفرستد = he/she must send

After باید, Persian normally uses the subjunctive form of the verb.

So:

• باید بفرستم = I must / have to send

Here, بفرستم is the 1st person singular subjunctive form of فرستادن.

This is the normal pattern:

• باید بروم = I must go
• باید بخوانی = you must read
• باید بفرستیم = we must send

Using می‌فرستم after باید would not be the standard structure here.

This is a Persian ezafe construction.

• آدرسِ بیمارستان = the address of the hospital

In Persian writing, the ezafe sound is often not written after a consonant, but it is still pronounced. So you say:

• âdres-e bimârestân

That -e sound links the two nouns together.

So even though you see آدرس بیمارستان, it is understood as:

• آدرسِ بیمارستان
• the hospital's address
• the address of the hospital

Yes, برای often means for, but in real Persian it can also indicate the intended recipient or beneficiary.

So برای پرستار بفرستم can mean something like:

• send it for the nurse
• send it to the nurse
  depending on context

If you want a more straightforward to the nurse, Persian can also use به:

• به پرستار بفرستم

In this sentence, برای پرستار sounds natural if the idea is that the address is meant for the nurse's use.

Because Persian is normally an SOV language: subject-object-verb.

So Persian often puts the verb at the end:

• گوشی را شارژ کن
• من باید آدرس بیمارستان را برای پرستار بفرستم

Compare the rough word order:

• English: Please charge the phone
• Persian: Please the phone charge

And:

• English: I must send the hospital address to the nurse
• Persian: I must the hospital address for/to the nurse send

This verb-final pattern is one of the most important word-order habits in Persian.

Persian does not have a separate definite article like English the.

So Persian usually relies on:

• context
• word order
• را for specific direct objects

That is why Persian can simply say:

• گوشی = phone / the phone
• بیمارستان = hospital / the hospital
• پرستار = nurse / the nurse

In this sentence, the meaning is understood from context, and را helps show that گوشی and آدرس بیمارستان are specific.

In modern everyday Persian, گوشی very often means mobile phone / cell phone.

Literally, the word has an older sense related to a handset or something connected with the ear, but in normal conversation most people understand گوشی as phone, especially a mobile phone.

If you want to be more explicit, you can say:

• گوشی موبایل
• تلفن همراه

But in ordinary speech, گوشی is extremely common.

A careful pronunciation would be roughly:

lotfan gushi râ shârzh kon; man bâyad âdres-e bimârestân râ barâye parastâr beferestam

In everyday speech, many speakers would say ro instead of râ:

lotfan gushi ro shârzh kon; man bâyad âdres-e bimârestân ro barâye parastâr beferestam

A few pronunciation notes:

• ژ in شارژ sounds like the s in measure
• خ does not appear in this sentence
• آدرسِ بیمارستان is pronounced with the ezafe sound -e
• بفرستم is pronounced beferestam, not befrestam in careful speech