Light Verbs: taka, gera, hafa, fá, leggja

A light verb (or support verb) is a verb that has been drained of most of its own meaning and now just carries a noun that does the real work. When you say taka ákvörðun, the verb taka ("take") isn't telling you anything about grabbing or seizing — the noun ákvörðun ("decision") is the whole point, and taka is merely the grammatical engine that lets you conjugate it. English does exactly the same thing: in "make a decision," "give a speech," "have a look," the verb is light and the noun is heavy. The trouble is that Icelandic and English choose different light verbs for the same idea, and the choice is fixed per noun. You cannot reason it out; you memorise the pair.

This is one of the highest-value things you can learn at B1, because light-verb constructions are everywhere — in conversation, in the news, in essays. A page of Icelandic prose will have one in nearly every sentence.

The core principle: the verb is fixed, and often "wrong"

There is no rule that predicts which light verb a given noun takes. taka ákvörðun ("make a decision") uses taka; gera ráð fyrir ("assume") uses gera; hafa áhrif ("have an effect") uses hafa. Swapping them produces nonsense to a native ear — gera ákvörðun is simply not Icelandic. And crucially, the Icelandic verb is frequently not the translation of the English one:

• "make a decision" → taka ákvörðun (lit. take)
• "have an effect" → hafa áhrif (here English and Icelandic agree — have)
• "make an assumption / assume" → gera ráð fyrir (lit. make account for)
• "get to go / be allowed to go" → fá að fara (lit. get to go)
• "set off" → leggja af stað (lit. lay off place)

Because the mapping is idiosyncratic, the only safe strategy is to learn the verb and noun as one inseparable chunk, the way you learned taka ákvörðun and not just ákvörðun.

taka — the busiest light verb

taka ("take") pairs with a large family of action-nouns. Three of the most frequent:

• taka ákvörðun — make a decision
• taka þátt í
  • dative — take part in, participate in
• taka eftir
  • dative — notice (lit. "take after")

Note the prepositions: taka þátt always wants í + dative, and taka eftir wants a bare dative object. The preposition is part of the construction — taka þátt mótmælunum (without í) is wrong.

gera — making and reckoning

gera ("do/make") pairs with nouns of reckoning and account:

• gera ráð fyrir
  • dative — assume, expect, allow for (lit. "make account for")
• gera grein fyrir
  • dative — account for, explain, give an account of

Both take fyrir + dative. gera ráð fyrir is one of the single most useful phrases in the language: it covers "assume," "expect," "count on," and "allow for."

hafa — having an effect, having contact

hafa ("have") is the one light verb where Icelandic and English often agree, which makes it deceptively easy — but the prepositions still bite.

• hafa áhrif á
  • accusative — have an influence on, affect
• hafa samband við
  • accusative — be in contact with, contact, get in touch with

Both take an accusative object after their preposition: áhrif á something, samband við someone. Mix up the case and the phrase falls apart.

fá — getting to, being allowed to

fá ("get/receive") forms a permission construction with að + infinitive: fá að + verb means "be allowed to, get to." It's how Icelandic most naturally expresses permission in everyday speech.

leggja — setting off, laying emphasis

leggja ("lay") anchors two very common phrases:

• leggja af stað — set off, set out (on a journey)
• leggja áherslu á
  • accusative — emphasise, lay emphasis on

leggja af stað is the standard way to say you're leaving on a trip — far more idiomatic than fara af stað for a journey. leggja áherslu á takes á + accusative.

The reference table

Each row gives the verb, the noun, the preposition (if any), the case it governs, and the meaning. The preposition and case are not optional extras — they are part of the phrase.

Why English speakers go wrong

The dominant error is choosing the light verb by English analogy. English "make a decision" maps the speaker straight onto gera ("make/do"), producing gera ákvörðun — which is simply not said. The fix is not a rule but a habit: never translate the English light verb. Retrieve the Icelandic chunk you learned, or, if you don't have it, restructure the sentence with a plain verb (ákveða "to decide") rather than inventing a light-verb phrase.

The second error is dropping the preposition or getting its case wrong: taka þátt mótmælunum (missing í), hafa áhrif á öllum heimilunum (dative where á wants accusative — it should be öll heimilin). Because the preposition and case are baked into the construction, leaving them out leaves the phrase ungrammatical.

Common Mistakes

Key Takeaways

• A light verb (taka, gera, hafa, fá, leggja) carries almost no meaning; the noun carries the action.
• The light verb is fixed per noun and is often not the English one: "make a decision" = taka ákvörðun.
• Each construction also fixes a preposition and case: taka þátt í (dat.), gera ráð fyrir (dat.), hafa áhrif á (acc.), hafa samband við (acc.), leggja áherslu á (acc.).
• Learn the verb + noun + preposition + case as one chunk — never compose the phrase from the English.
• The classic error is the English-analogy light verb (gera ákvörðun); the second is dropping or mis-casing the preposition.