behöva (to need) | Swedish Grammar

behöva means "to need." It is a Group 2 -de verb, and it is one of the most important verbs to master early because of one specific job it does: behöver inte is how Swedish says "don't have to." There is no clean negative of måste ("must / have to"), so behöva steps in to fill that gap. Getting this right is the difference between "you don't have to come" and an awkward near-miss. The be- prefix, by the way, is a borrowing from Low German — the same prefix you see in betala ("pay"), behålla ("keep"), and bestämma ("decide").

Principal parts

Infinitive	Present	Preteritum (past)	Supine	Imperative	Group
behöva	behöver	behövde	behövt	behöv (rare)	Group 2 (-de)

The present is behöv- + -er = behöver; the past stem behöv- ends in the voiced v, so it takes -de: behövde, never behövte. The supine is behövt. The imperative behöv exists in theory but is vanishingly rare — you don't command someone to need something.

Use 1: behöva + a noun — to need something

The simplest use is behöva plus a direct object: the thing you need.

Jag behöver hjälp med det här.

I need help with this. behöver + noun — the basic 'need something' frame.

Vi behövde mer tid än vi trodde.

We needed more time than we thought. behövde — the voiced-stem -de past.

Har du någonsin behövt en sån sak?

Have you ever needed a thing like that? har behövt — perfect, supine behövt after har.

Use 2: behöva + a bare infinitive — to need to do

To say you need to do something, behöva takes a bare infinitive with no att. This is the same pattern as the modal-like verbs (kan, vill, måste): no att before the second verb.

Jag behöver köpa mjölk på vägen hem.

I need to buy milk on the way home. behöver köpa — bare infinitive, no att between the verbs.

Vi behövde vänta i två timmar på flygplatsen.

We had to wait for two hours at the airport. behövde vänta — past + bare infinitive.

Use 3: behöver inte — don't have to (the key use)

Here is the construction that makes behöva essential. English "must" and "have to" both turn into Swedish måste in the positive. But to make it negative — "don't have to," "needn't" — you cannot simply negate måste. Instead, Swedish uses behöver inte: "you don't need to," i.e. "you don't have to."

Why does this matter so much? Because måste inte does not reliably mean "don't have to" — in modern usage it leans toward "must not / are not allowed to," the opposite of what an English speaker intends. So when you want to lift an obligation — to tell someone they're free not to do something — reach for behöver inte, every time.

Du behöver inte komma om du är trött.

You don't have to come if you're tired. behöver inte = 'don't have to' — the obligation is lifted.

Ni behöver inte betala i förväg.

You don't have to pay in advance. behöver inte — the standard 'no obligation' construction.

Hon behövde inte säga något — alla förstod ändå.

She didn't have to say anything — everyone understood anyway. behövde inte — past, 'didn't have to'.

Common Mistakes

❌ Du måste inte komma.

Misleading — måste inte is heard as 'must not / are not allowed to', not 'don't have to'. To lift the obligation use behöver inte.

✅ Du behöver inte komma.

You don't have to come.

❌ Jag behöver att köpa mjölk.

Incorrect — behöva takes a bare infinitive with no att: behöver köpa, not *behöver att köpa.

✅ Jag behöver köpa mjölk.

I need to buy milk.

❌ Vi behövte mer tid.

Incorrect — the stem behöv- ends in voiced v, so the past is behövde, not *behövte.

✅ Vi behövde mer tid.

We needed more time.

❌ Jag har behövat hjälp.

Incorrect supine — the supine of behöva is behövt, not *behövat (that would be Group 1).

✅ Jag har behövt hjälp.

I have needed help.

💡

The one use of behöva to burn into memory is behöver inte = "don't have to." Swedish has no clean negative of måste: måste inte drifts toward "must not / not allowed to," so to lift an obligation you say behöver inte. And like the modals, behöva takes a bare infinitive — behöver köpa, never *behöver att köpa.

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