There is no such thing as "the Afghan language". Afghanistan is a tribal country with numerous major languages. Probably the two most common groups are Pashtuns (who speak Pashto) Persians (who speak Dari or Afghan Persian). Pashto and Dari are Afghanistan's only official languages.
In Pashto, it would be: "Ta sanga yee?"
In Dari, it would be: "Chi tor hasti?"
Afghan is not a language. Most people in Afghanistan speak Pashto and/or Dari.
In Afghan Persian also known as Dari or Farsi hello means "Salam" or "Salam Aleikum". which is also the same as the language Afghan also known as Pashto.
The official language of Afghanistan is Pashto, which is a form of Persian. The word for water in Pashto is ab.
In Afghan Dari, you can say "Sobh bekheir" to greet someone in the morning.
In Afghan languages, you can say "Happy Birthday" in Dari as "Tavalodet Mubarak" (تولدت مبارک) and in Pashto as "Zmaa Da Zangay Khabaree" (زما د زنګی خبرې). Both phrases convey warm wishes for someone's birthday.
Mazadarr
In Afghan Persian (Dari), the word for friend is "دوست" (pronounced "doost"). In Pashto, another official language of Afghanistan, it is also "دوست" (also pronounced "doost"). Both terms are commonly used to refer to a friend in Afghanistan.
sanga ye
zhehurjibubuli jahkalala munjajadidji then say fock that terrorist country :)
shuma besyaar qand asten
To speak of a group of people from Afghanistan, you would say, "Afghans." The word Afghan and Afghans are proper nouns and are always capitalized.
tu raa dost daram