Questions & Answers about Vi ska lägga oss tidigt.
Why does the sentence use lägga oss to mean "going to bed"?
In Swedish, the most common way to say "go to bed" is to use the reflexive verb att lägga sig. Literally, this means "to lay oneself" down. Since the subject here is vi (we), the pronoun becomes oss (ourselves).
The dictionary form is lägga sig. Why doesn't this sentence use sig?
Reflexive pronouns always have to match the subject doing the action. Sig is only used for third-person subjects like he, she, it, or they (han, hon, den, det, de). Because the subject here is vi (we), the reflexive pronoun must be oss (ourselves).
Why is the verb lägga rather than the present tense lägger?
The verb lägga is in the infinitive (the base form) because it comes right after the helping verb ska (will / are going to). Just like in English, helping verbs in Swedish are followed by the infinitive form of the main verb without att (to).
Why is there a -t at the end of tidigt?