De groepschat bevestigt de gastenlijst.

Because Dutch usually writes compound nouns as a single word.

• groep = group
• chat = chat
• groepschat = group chat

This is very normal in Dutch. English often uses two words where Dutch prefers one compound word.

The -s- in the middle is a linking sound that often appears in compounds, but it is not something you can always predict perfectly, so it is best to learn compounds as whole words.

Both groepschat and gastenlijst are de-woorden.

So you say:

• de groepschat
• de gastenlijst

In Dutch, every singular noun has to be learned with its article, because English does not have this distinction. There is not always a simple rule that tells you whether a noun takes de or het, so memorizing the noun together with its article is important.

Because the subject is third-person singular: de groepschat.

The infinitive is bevestigen = to confirm.
In the present tense:

• ik bevestig
• jij bevestigt
• hij/zij/het bevestigt
• de groepschat bevestigt
• wij/jullie/zij bevestigen

So bevestigt is the correct present-tense form for a singular subject.

It follows the normal Dutch main-clause pattern:

subject + verb + object

• De groepschat = subject
• bevestigt = verb
• de gastenlijst = object

So the structure is very similar to English:

• The group chat confirms the guest list.

It is singular.

Even though gasten is the plural of gast inside the compound, the whole word gastenlijst means guest list, and the head of the compound is lijst. The full compound refers to one list, so it is singular here:

• de gastenlijst = the guest list

If you wanted the plural, it would be:

• de gastenlijsten = the guest lists

Dutch compounds often use a plural form as the first part when that sounds natural or expresses the idea clearly.

So:

• gast = guest
• gasten = guests
• gastenlijst = guest list / list of guests

English also does something similar in meaning, even if the form looks different. The Dutch compound literally feels closer to guests list, but the natural English translation is guest list.

Yes. Bevestigen can have a few related meanings depending on context, such as:

• to confirm
• to verify
• to affirm
• sometimes to fasten/attach, in other contexts

In this sentence, the meaning is clearly to confirm.

Yes. The Dutch simple present can often translate as either:

• confirms
• is confirming

Which one sounds best in English depends on context. Dutch does have ways to emphasize an ongoing action, but very often the simple present is enough.

So De groepschat bevestigt de gastenlijst could mean:

• The group chat confirms the guest list
• The group chat is confirming the guest list

if the context supports that.

A rough pronunciation is:

buh-VES-tikht

A few notes:

• The stress is on ves
• The g in Dutch is not like the English g in go. It is a throat sound.
• The final -t is pronounced

This is only an approximation in English spelling, but it can help at first.

Very roughly:

• groepschat ≈ khroops-khat
• gastenlijst ≈ KHAS-tun-list

A few important sounds:

• gr starts with the Dutch g, a throat sound
• sch in chat is not like English sh here; because of the compound boundary, you really hear s + ch
• ij in lijst sounds somewhat like the vowel in English eye

These are only rough guides. Dutch pronunciation is best learned by listening to native audio.

No. Dutch does not capitalize all nouns.

So you write:

• de groepschat bevestigt de gastenlijst

Only the first word of the sentence is capitalized here because it starts the sentence. Common nouns like groepschat and gastenlijst stay lowercase unless they begin a sentence.

It is the direct object.

The subject, de groepschat, performs the action.
The direct object, de gastenlijst, receives the action of confirming.

So:

• Who confirms? → de groepschat
• What is confirmed? → de gastenlijst