Questions & Answers about Не волнуйся, всё в порядке.
Why is не волнуйся written as one word, and what form is волнуйся?
Не with verbs is normally written separately in Russian, so не волнуйся = don’t worry.
Волнуйся is the imperative (command/request) form of the verb волноваться (to worry / to be nervous) in the informal singular (ты) form. The -ся part is the reflexive ending.
Is не волнуйся formal or informal? How would I say it formally?
Не волнуйся is informal (to one person you address as ты).
Formal/polite (to вы, one person politely or multiple people): Не волнуйтесь.
Why is there a comma after Не волнуйся?
It separates two parts of the sentence: an imperative/request (Не волнуйся) and then a reassurance (всё в порядке). In English you’d often do the same: Don’t worry, everything is fine.
What does всё mean here, and why is it spelled with ё?