Learn Russian: Вы нас помните?

нас is the Accusative case form of мы (we). In Russian, the person or thing receiving the action (the direct object) needs to be in the Accusative case. Since the action of remembering is happening to 'us', мы changes to нас.

The sentence order is literally 'You us remember?'. Can I say Вы помните нас? instead?

Yes, you can! Вы помните нас? matches English word order and is perfectly correct. However, Russian word order is flexible, and placing short object pronouns like нас right before the verb is extremely common and natural in everyday speech.

Why does the verb помните end in -ите?

The ending -ите matches the subject Вы (the formal or plural 'you'). The dictionary form of the verb is помнить (to remember). Because it ends in -ить, it follows the Type 2 (second conjugation) pattern for its endings.

There is no word for 'Do' here. How do we know it is a question?

Russian does not use helping verbs like 'do' or 'does' to ask questions. You just use the exact same words as a regular statement (Вы нас помните can also mean 'You remember us.') and simply raise your voice at the end when speaking.