Vilken grupp tillhör du?

Because grupp is a common-gender singular noun in Swedish: en grupp.

The forms are:

• vilken = for en-words in the singular
• vilket = for ett-words in the singular
• vilka = for plural

So:

• vilken grupp = correct
• vilket hus = which house
• vilka grupper = which groups

Since grupp is en grupp, the sentence needs vilken.

In Swedish questions with a question word, the finite verb usually comes before the subject.

So the pattern is often:

question word/phrase + verb + subject

Here:

• Vilken grupp = question phrase
• tillhör = verb
• du = subject

So:

• Vilken grupp tillhör du? = correct

Compare with a statement:

• Du tillhör en grupp. = You belong to a group.

This verb-before-subject order is very common in Swedish questions.

Tillhör is the present tense of tillhöra, which means:

• to belong to
• to be part of
• to be associated with

So Vilken grupp tillhör du? literally means something like:

• Which group belong-to you?

But in natural English, it is:

• Which group do you belong to?

They are very close in meaning.

You can say:

• Vilken grupp tillhör du?
• Vilken grupp hör du till?

Both mean Which group do you belong to?

A useful difference to know:

• tillhöra often feels a bit more compact or formal
• höra till is also very common and natural in everyday speech

So both are good Swedish, and learners will encounter both.

After vilken, Swedish normally uses the noun without the indefinite article.

So you say:

• vilken grupp = which group
• not vilken en grupp

This is the same idea as in English:

• which group
• not which a group

So Vilken grupp tillhör du? is exactly what you would expect grammatically.

Yes. In modern Swedish, du is the normal word for you in both informal and most formal situations.

Unlike some languages, Swedish usually does not require a special formal you in ordinary polite speech.

So:

• du = the normal singular you

You may also see ni, but that is usually for:

• talking to more than one person, or
• in some cases a more formal/service style

For one person, du is normally the standard choice.

A rough pronunciation guide for an English speaker is:

VIL-ken grüp til-HUR doo

A few notes:

• Vilken: the first syllable is stressed
• grupp: the u is not like English group; it is shorter and more rounded
• tillhör: stress is on the second syllable, -hör
• du is pronounced like doo

A more approximate IPA version is:

[ˈvɪlkɛn grɵp tɪlˈhøːr dʉː]

You do not need perfect pronunciation right away, but it helps to notice that tillhör has the main stress near the end.

Yes. Grupp is a broad word and can refer to many kinds of groups, for example:

• a class group
• a work group
• a research group
• a category in a survey
• a political or social group

So the exact meaning depends on context. The grammar of the sentence stays the same regardless.

You might hear vad för in Swedish, but here vilken grupp is the more natural choice when you are asking someone to identify which one.

So:

• Vilken grupp tillhör du? = the standard and best phrasing here

Vad för is more like what kind of and is often used when asking about type rather than choosing from identifiable groups.

Compare:

• Vilken grupp tillhör du? = Which group do you belong to?
• Vad för grupp är det? = What kind of group is it?

So in this sentence, vilken is the better fit.

Tillhör is present tense.

The infinitive is:

• att tillhöra = to belong to

Common forms:

• tillhör = belong / belongs
• tillhörde = belonged
• har tillhört = have/has belonged

In Vilken grupp tillhör du?, the meaning is present time:

• Which group do you belong to?