Dutch conjunctions and word order

Dutch conjunctions split cleanly into two groups, and the group decides the word order that follows. Coordinating conjunctions keep normal, verb-second order; subordinating conjunctions send the verb to the end of their clause. Getting this right is the difference between sounding beginner and sounding fluent.

The two groups in one glance

A conjunction is a joining word. What matters in Dutch is not its meaning but its type, because that alone controls whether the following verb stays in second position or drops to the end.

Coordinating (verb stays 2nd)Subordinating (verb to the end)
en — andomdat — because
maar — butdat — that
of — orals — if / when
want — for / becausetoen — when (past)
dus — soterwijl — while

The five coordinating ones are worth memorising as a closed set — en, maar, of, want, dus. Everything else that joins clauses is subordinating and kicks the verb to the end.

Coordinating: nothing changes

After en, maar, of, want, dus, the second clause keeps ordinary main-clause order, with its finite verb in second position:

Notice the verb (woon, had, regent) stays right after its subject — identical to a stand-alone sentence.

Subordinating: verb to the end

After a subordinating conjunction, the whole clause becomes a subordinate clause: every verb moves to the end. Compare the same idea joined two ways:

With just one short verb the difference is invisible, but add more material and it becomes obvious:

When the subordinate clause comes first, it fills slot one, so the main clause that follows still needs its verb in second position — giving the “verb, verb” pattern across the comma:

Omdat vs want: the pair to master

Both mean “because,” and they are the classic proof that only the type matters, not the meaning. Omdat is subordinating (verb to the end); want is coordinating (verb stays second).

omdat (subordinating)want (coordinating)
Ik ga niet omdat ik ziek ben.Ik ga niet, want ik ben ziek.
verb ben at the endverb ben in second position

Both sentences mean “I'm not going because I'm ill.” A subtle usage difference: omdat answers a waarom (why) question and can open a sentence; want only links two main clauses and cannot start one. When in doubt about word order, want is the safer choice because it needs no reordering — but you must be able to produce omdat correctly to sound advanced.

Dat-clauses

Dat (that) introduces reported statements and the objects of verbs like denken (think), weten (know), zeggen (say), hopen (hope). As a conjunction it is subordinating, so the verb goes to the end. English often drops “that,” but Dutch usually keeps dat:

Don't confuse this conjunction dat with the demonstrative dat (“that one”) or the relative dat — they are spelled the same but do different jobs.

Als, wanneer, toen: three ways to say “when”

English “when” splits three ways in Dutch, and all three are subordinating:

DutchUseExample
toena single event in the pastToen ik jong was, woonde ik in Gent. — When I was young, I lived in Ghent.
alspresent/future, or repeated past (“whenever”); also “if”Als ik tijd heb, bel ik je. — When/if I have time, I'll call you.
wanneer“when” in questions; a more formal “when”Wanneer kom je? — When are you coming?

The reliable rule: use toen for one completed thing in the past, and als for everything present, future or habitual. Mixing these up — especially using als for a past event — is one of the most common learner tells.

Om ... te + infinitive

To express purpose (“in order to”), Dutch brackets the clause with om at the front and te + infinitive at the end:

With a separable verb, te slots between the prefix and stem: om je op te bellen (to phone you), from opbellen.

Common mistakes. (1) Using want word order after omdat (omdat ik ben ziek) — omdat sends the verb to the end: omdat ik ziek ben. (2) Using als for a one-off past event where toen is needed. (3) Dropping dat the way English drops “that.” Belgian Dutch uses the same conjunctions and word-order rules; you may hear the doubling omdat dat in casual Flemish speech, but it isn't standard. Pair this page with word order and the broader common mistakes guide.