Wij reizen in oktober.

Both wij and we mean we.

• we is very common in everyday speech and writing.
• wij is a bit more emphatic, clearer, or slightly more formal.

So Wij reizen in oktober and We reizen in oktober are both correct. A learner will often hear we more often in conversation.

Because with wij/we in the present tense, Dutch verbs usually take the -en form.

For the verb reizen:

• ik reis = I travel
• jij reist = you travel
• hij/zij reist = he/she travels
• wij reizen = we travel
• jullie reizen = you all travel
• zij reizen = they travel

So wij reizen is the normal present-tense form.

It is both.

The dictionary form of the verb is reizen = to travel.
But the present-tense form for wij/we is also reizen.

So in this sentence, reizen is a conjugated verb, even though it looks the same as the infinitive.

Dutch usually uses in with months, just like English.

• in oktober = in October
• in april = in April
• in de zomer = in the summer

So this part is very similar to English.

In Dutch, names of months are normally not capitalized unless they begin the sentence.

So:

• in oktober = correct
• in Oktober = not standard Dutch

This is different from English, where October must be capitalized.

No, normally you do not use an article with month names in this kind of sentence.

So you say:

• in oktober = correct

Not usually:

• in de oktober = incorrect in this context

Month names generally stand on their own.

The sentence has a very common Dutch main-clause order:

subject + finite verb + time expression

So here:

• Wij = subject
• reizen = finite verb
• in oktober = time expression

Dutch main clauses usually follow the verb-second rule, which means the finite verb comes in the second position.

Then the verb must still stay in second position:

• In oktober reizen wij.
• In oktober reizen we.

This is correct Dutch word order.

Notice that you do not keep the subject before the verb:

• In oktober wij reizen = incorrect

So when a time phrase comes first, the verb comes next.

Grammatically, it is present tense. But in Dutch, the present tense is often used for a future event, especially when the time is already clear.

So Wij reizen in oktober can mean something like:

• we are traveling in October
• we will travel in October

The phrase in oktober makes the future meaning clear.

wij is pronounced roughly like English why, though not exactly the same.

The ij sound is an important Dutch vowel combination. English speakers often approximate it with the sound in eye or why.

So:

• wij ≈ why

That is a useful approximation for beginners.

A rough beginner-friendly pronunciation is:

• RYE-zuh(n)

More specifically:

• rei- sounds somewhat like English rye
• -zen has a soft z sound, and the final -en is often reduced in natural speech

So an English speaker can start with something close to RYE-zun.

Yes, but it means something slightly different in style.

• Wij reizen in oktober is simpler and more natural in many cases.
• Wij gaan in oktober reizen adds gaan and can sound more like we are going to travel in October.

Dutch often prefers the simpler present tense when the time is already stated, so Wij reizen in oktober is very natural.