Learn Swedish: När vi städar rummet flyttar vi stora möbler. - When we clean the room, we move large furniture.

This is exactly what this lesson is about! When a noun ends in an unstressed -el, like en möbel (a piece of furniture), it drops that e before adding the plural ending -er. This makes it flow better. So, möbel plus -er becomes möbler. Notice that unlike in English, furniture is countable in Swedish!

Why is the word order flyttar vi instead of vi flyttar?

This happens because of the Swedish V2 (verb-second) rule. The first chunk of information in this sentence is the entire time phrase När vi städar rummet (When we clean the room). The main verb flyttar must take the second position, pushing the subject vi to the spot right after it.

Why does the word stor (large) have an -a at the end here?

Because it is describing a plural noun. Since möbler is plural, the adjective must match it by taking the plural -a ending, becoming stora.

I've learned other words for cleaning. Why use städar here?