Cleft Sentences: Det er ... som | Norwegian Grammar

A cleft sentence splits one idea across two clauses so that a single element gets the spotlight. Norwegian builds it with a fixed frame: Det er/var + the focused element + som (or at) + the rest of the clause. Det var Ola som ringte — "It was Ola who called." English has the same construction (It was Ola who called), so the structure will feel familiar. The thing to absorb is frequency: Norwegian reaches for the cleft constantly in ordinary speech, where English would just lean on stress. A learner who avoids it sounds flat and faintly foreign even when every word is correct.

The frame

Every cleft has three moving parts:

Det er / var	Focused element	som / at + rest
Det var	Ola	som ringte.
Det er	deg	jeg vil snakke med.
Det var	i går	(at) det skjedde.

The opening det is a dummy — it doesn't refer to anything, exactly like the it in English It was Ola. The tense lives on er / var (present or past), and it agrees with the time of the whole event, not with the focused noun. So even when you focus a plural, the verb stays singular er / var.

Det er barna som lager mest bråk.

It's the kids who make the most noise.

Not Det er barna som lager paired with a plural er — the frame verb is invariably er or var.

What you can focus, and which linker to use

The choice between som and at depends on the role of the focused element in the underlying sentence.

Focusing a subject → som

When the spotlighted element is the subject of the action, the linker is som.

Det var Per som betalte for alt.

It was Per who paid for everything.

Det er naboen som klipper plenen hver lørdag.

It's the neighbour who mows the lawn every Saturday.

Here Per and naboen are doing the verb, so som introduces the rest.

Focusing an object → som (and the object goes up front)

When you spotlight the object, it moves into the focus slot and som still links the clause. Often the som can even be dropped (just as English drops that), leaving the subject right after the focused element.

Det er deg jeg snakker om.

It's you I'm talking about.

Det var den boka (som) jeg mente.

It was that book (that) I meant.

Note the pronoun form in Det er deg — Norwegian uses the object form deg, not du, because the pronoun is the object of snakker om. English does the same thing colloquially (It's you, not It's thou/you-subject), so the instinct usually transfers, but in careful writing you must keep the object case.

Focusing an adverbial → at or som

When the focus is an adverbial — a time, place or reason — the linker is usually at (and it can often be dropped entirely). Som is also heard for place adverbials in many speakers' usage; both are accepted.

Det var i Bergen vi møttes første gang.

It was in Bergen that we first met.

Det var i går (at) hele greia skjedde.

It was yesterday that the whole thing happened.

Det er derfor jeg kom så tidlig.

That's why I came so early.

In the last example, derfor ("that's why / for that reason") is an adverbial of reason, so the natural cleft uses no som; you simply continue with the clause.

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Quick rule of thumb: if the focused element is a person or thing doing or undergoing the verb → som. If it's a time, place or reason → at (often droppable). When in doubt with a place, both som and at pass.

Why Norwegian clefts so much more than English

This is the heart of the page. English has the it-cleft, but uses it sparingly — usually for strong contrast or correction. For ordinary emphasis, English just stresses a word: I want to talk to YOU. Norwegian does that structurally instead. The cleft is its everyday emphasis device, and you'll hear it pour out of native speakers in casual conversation.

Det er det jeg mener!

That's exactly what I mean!

Det er ikke det jeg sa.

That's not what I said.

Var det meg du ringte?

Was it me you called?

These are not formal or literary — they are how friends talk. Det er det jeg mener would, word-for-word, be "It is that which I mean," but it's the most natural way to say "That's just what I mean." The cleft also does the work of clarification and contrast: when you correct someone or pick the relevant item out of several, you cleft.

Det var ikke meg, det var broren min som tok bilen.

It wasn't me — it was my brother who took the car.

A learner who renders that as a flat Jeg tok ikke bilen, broren min tok den is grammatical but misses the pointed, singling-out feel a Norwegian would give it. The cleft is how you say "this one, specifically."

Clefts and topicalisation are cousins, not twins

You can often emphasise the same element either by fronting it (topicalisation) or by clefting it. They're related — both push an element to the front — but they aren't identical.

Deg vil jeg snakke med.

You, I want to talk to. (fronting)

Det er deg jeg vil snakke med.

It's you I want to talk to. (cleft)

Fronting simply moves deg into the fundament. The cleft wraps it in the det er ... (som) frame, which gives a stronger, more exclusive focus — "you and no one else." The cleft also lets you focus an element that's awkward to front, and it carries an implicit contrast ("not someone else"). For the fronting alternative, see topicalisation; the cleft itself is a specialised use of the det-expletive. The som inside the cleft is the same relative som covered under relative som.

A note on tense and questions

The frame verb takes the same tense as the event: present event → Det er, past event → Det var.

Det er du som bestemmer her.

You're the one who decides here.

Det var du som bestemte den gangen.

You were the one who decided that time.

To question a cleft, just invert det and the verb, exactly as you'd question any main clause:

Er det deg som har nøkkelen?

Are you the one who has the key?

Common Mistakes

❌ Per kom, ikke Ola. (sagt med trykk på Per)

Understandable but flat — using stress alone where Norwegian would cleft.

✅ Det var Per som kom, ikke Ola.

It was Per who came, not Ola.

Relying on English-style stress to single Per out leaves the Norwegian sounding underemphasised. Build the cleft.

❌ Det var i Bergen som vi møttes.

Marked — adverbial focus normally takes at, not som, for most speakers.

✅ Det var i Bergen vi møttes.

It was in Bergen that we first met.

For an adverbial of place or time, drop som; use at if you want a linker, or nothing at all. Som after an adverbial sounds off to many speakers.

❌ Det er du jeg vil snakke med.

Incorrect — wrong pronoun case; the pronoun is an object here.

✅ Det er deg jeg vil snakke med.

It's you I want to talk to.

When you focus an object pronoun, use the object form: deg, meg, ham/han, henne, oss, dem — not du, jeg, etc.

❌ Det er barna som lager mest bråk er.

Incorrect — the frame verb is just er/var, never doubled or made plural.

✅ Det er barna som lager mest bråk.

It's the kids who make the most noise.

The frame verb is a single er or var. Don't add a second verb and don't make it plural to match the focused noun.

❌ Det var derfor som jeg kom.

Incorrect — derfor is an adverbial of reason; no som.

✅ Det var derfor jeg kom.

That's why I came.

With derfor (reason), continue straight into the clause — no som, no at needed.

Key Takeaways

The cleft frame is Det er/var + [focus] + som/at + clause; the opening det is a dummy and the verb is always er or var.
Subject or object focus → som (often droppable for objects); adverbial focus → at (often droppable).
Focused object pronouns take the object case: deg, meg, henne.
Norwegian clefts far more than English — it's the everyday way to emphasise, clarify and contrast, not a special formal device.
Clefting gives stronger, more exclusive focus than plain fronting and implies "this one, not the other."

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