Learn Hardcore Romanian: Noaptea citesc o carte bună.

Noaptea is the definite form of noapte (“night”) used adverbially to mean “at night.” In Romanian, a noun with its definite article can serve as a time expression. Here it tells us when the action happens, just like “at night” in English.

Why is there no subject pronoun like eu before citesc?

Romanian is a pro-drop (null-subject) language. The verb ending -esc already indicates 1st person singular (“I”). You could say Eu citesc, but it’s redundant unless you want to emphasize “I” specifically.

What person and number is citesc? Could it ever mean “they read”?

The form citesc is identical for both 1st person singular (I read) and 3rd person plural (they read) in the present tense of ‑a verbs. Context tells us it’s 1st person singular here. If you meant “they read,” you’d normally include ei/ele or another clue.

Why is the indefinite article o used before carte?

In Romanian, feminine singular nouns take the indefinite article o (“a”/“an”). Since carte (“book”) is a feminine singular noun, it requires o to become o carte (“a book”).