Kan ni lägga era väskor på stolen?

Yes. Starting with Kan makes it a yes/no question.

In Swedish, verb-first word order is very common in direct questions:

• Kan ni lägga era väskor på stolen? = Can you put your bags on the chair?

In ordinary statements, the subject usually comes first:

• Ni kan lägga era väskor på stolen. = You can put your bags on the chair.

So moving kan before ni is one of the clearest signs that this is a question.

Ni usually means you (plural), meaning more than one person.

So this sentence is most naturally addressed to several people:

• Kan ni ... ? = Can you all ... ?

In modern Swedish, ni can sometimes also sound formal when used to one person, but that is much less central than in some other languages. For learners, the safest main meaning is:

• du = you (one person, informal)
• ni = you (more than one person)

Because after a modal verb like kan, Swedish uses the infinitive form of the main verb.

So:

• kan = can
• lägga = to put / to lay

Together:

• kan lägga = can put

This is similar to English:

• can put
• not can puts

Compare:

• Ni lägger väskorna på stolen. = You put / are putting the bags on the chair.
• Ni kan lägga väskorna på stolen. = You can put the bags on the chair.

Lägga means to lay, to put, or to place, especially when something is put down in a lying position or onto a surface.

In this sentence, lägga is a very natural choice for bags, because bags are usually thought of as being laid down.

A useful comparison:

• lägga = lay/put something down
• ligga = lie/be lying

For example:

• Jag lägger boken på bordet. = I put the book on the table.
• Boken ligger på bordet. = The book is lying on the table.

So lägga is the action, while ligga describes the resulting position.

Sometimes, yes, but lägga is very natural here.

Swedish often chooses different placement verbs depending on how something is positioned:

• lägga = lay something down
• ställa = set something standing upright
• sätta = set/place, often for sitting-related positions or more general placement in some contexts

For bags, lägga works well if you are thinking of placing them down on the chair.

You might also hear more general verbs such as:

• placera = place
• sätta in some everyday contexts

But lägga era väskor på stolen sounds normal and idiomatic.

Era means your when speaking to ni, and it agrees with the noun.

The base possessive for ni is:

• er for common-gender singular nouns
• ert for neuter singular nouns
• era for plural nouns

Since väskor is plural, Swedish uses era:

• era väskor = your bags

Compare:

• er väska = your bag
• ert bagage = your luggage
• era väskor = your bags

So era is chosen because the thing possessed, väskor, is plural.

Because after a possessive word like min, din, er, era, Swedish normally uses the noun in the indefinite form.

So:

• era väskor = your bags

not:

• era väskorna

This is similar to English, where we say your bags, not your the bags.

A few examples:

• min bok = my book
• mitt hus = my house
• mina böcker = my books
• era väskor = your bags

So the possessive already makes the noun specific enough, and Swedish does not usually add the definite ending as well.

Because stolen means the chair, and in this sentence the speaker is referring to a specific chair.

Swedish often uses the definite form when both speaker and listener know which object is meant.

• stol = chair
• stolen = the chair

So:

• på stolen = on the chair

If the meaning were more general or nonspecific, you could say:

• på en stol = on a chair

Swedish does not normally say på stol in this kind of everyday sentence.

That is how Swedish commonly forms the definite singular of many common-gender nouns.

• en stol = a chair
• stolen = the chair

For many en-words, the definite ending is -en or something similar added to the end of the noun.

So here:

• stol
  • -en → stolen

This is one of the big differences from English: Swedish often attaches the directly to the noun instead of writing it as a separate word.

På often means on, onto, or sometimes in/at depending on context. Here it means on.

So:

• på stolen = on the chair

With placement, Swedish often uses the same preposition for both location and movement, and the verb tells you whether it is static or dynamic.

Compare:

• Väskorna ligger på stolen. = The bags are on the chair.
• Lägg väskorna på stolen. = Put the bags on the chair.

English often distinguishes on and onto more clearly, but Swedish very often just uses på.

It can definitely be a polite request.

Just like English Can you ... ?, Swedish Kan ni ... ? may literally ask about ability, but in normal conversation it often functions as a request:

• Kan ni lägga era väskor på stolen?
  = Can you put your bags on the chair?
  but really meaning
  = Please put your bags on the chair.

So the sentence is grammatically a question, but pragmatically it is often a polite instruction or request.

If someone wanted to sound even softer or more formal, they might say something like:

• Skulle ni kunna lägga era väskor på stolen? = Could you put your bags on the chair?

You would usually use du instead of ni, and the possessive would change too.

So:

• Kan du lägga din väska på stolen? = Can you put your bag on the chair?
• Kan du lägga dina väskor på stolen? = Can you put your bags on the chair?

Notice the pattern:

• du → din / ditt / dina
• ni → er / ert / era

So the original sentence is plural:

• Kan ni lägga era väskor på stolen?

And the singular equivalent would be something like:

• Kan du lägga dina väskor på stolen?

A careful approximate pronunciation is:

kan ni LEG-ga E-ra VESS-kor po STO-len

A few helpful notes:

• kan sounds roughly like kahn
• ni sounds like nee
• lägga has a short ä sound; roughly LEG-ga
• era is often pronounced quite lightly in everyday speech, roughly EH-ra
• väskor sounds roughly like VESS-kor
• på has a long vowel, roughly poh
• stolen sounds roughly STOO-len

In natural speech, some sounds may become smoother or shorter, but that approximation is good enough for a learner to start with.