Learn Farsi: این لپ‌تاپ مال من است، ولی پرینتر مشترک است. - This laptop is mine, but the printer is shared.

مال (māl) literally means "property" or "belongings." When combined with a pronoun using the ezafe (the "e" connector), like مال من, it translates to the absolute possessive pronoun "mine." While این لپ‌تاپم است means "this is my laptop," saying این لپ‌تاپ مال من است puts the focus squarely on ownership: "this laptop is mine."

Are English words like لپ‌تاپ (laptop) and پرینتر (printer) standard in Farsi?

Yes! Modern conversational Farsi heavily relies on English loanwords for technology and electronics. While the official language academy sometimes creates native Farsi equivalents (like چاپگر or chāpgar for printer), everyday speakers and store clerks will usually just say لپ‌تاپ and پرینتر.

Does مشترک (moshtarak) always mean "shared"?

In this adjective context, yes, it means "shared" or "in common." However, you will also frequently see مشترک used as a noun meaning "subscriber" (such as a mobile phone, magazine, or internet subscriber).

How could I apply this lesson's grammar to say "...unless the printer is shared"?

You would replace ولی (but) with مگر اینکه (unless). Because مگر اینکه triggers the present subjunctive, the verb است (ast - is) must change to its subjunctive form, (bāshad). The second half of the sentence would become: (magar inke perinter moshtarak bāshad).