Við eigum ekki næga olíu.

A natural word-for-word breakdown is:

• Við = we
• eigum = have / own
  
  • this is the 1st person plural present form of eiga
• ekki = not
• næga = enough / sufficient
• olíu = oil

So the structure is basically:

• Við eigum = we have
• ekki = not
• næga olíu = enough oil

Because the subject is við = we.

The dictionary form of the verb is eiga, and Icelandic verbs change depending on the subject. With við, you need the 1st person plural present form:

• ég á = I have
• þú átt = you have
• við eigum = we have

So eigum simply matches við.

Yes, hafa can also mean to have, but eiga is very commonly used for possession or having something available.

In this sentence, eiga is very natural for the idea of having enough oil as a resource or supply.

A useful rough guide is:

• eiga often = possess / have available
• hafa often = have, but in many contexts it is used differently than English have

So Við eigum ekki næga olíu is a normal and idiomatic way to say We do not have enough oil.

In a normal Icelandic statement, ekki usually comes after the finite verb.

So:

• Við eigum ekki ... = We do not have ...

This is standard Icelandic word order. English needs do in a sentence like we do not have, but Icelandic does not use that kind of helper verb here. It just puts ekki after the conjugated verb.

Because adjectives in Icelandic must agree with the noun they describe in:

• gender
• number
• case

Here, olía is:

• feminine
• singular
• accusative in this sentence

So nægur has to appear in the feminine singular accusative form:

• næga

That is why you get:

• næga olíu = enough oil

For comparison:

• masculine accusative singular: nægan
• feminine accusative singular: næga
• neuter accusative singular: nægt

Because olíu is the accusative singular form of olía.

The noun olía means oil, and in this sentence it is the direct object of the verb eiga. Many Icelandic verbs, including eiga, take an accusative object.

So:

• olía = nominative form
• olíu = accusative form

That is why the sentence has næga olíu, not næga olía.

Because oil is being treated as a mass noun, just like in English.

When you talk about a substance in general, Icelandic often uses the singular:

• olía / olíu = oil

If you used the plural olíur, that would usually suggest:

• different kinds of oils
• separate oils as types or products

So in a sentence meaning We do not have enough oil, the singular is exactly what you would expect.

Because the sentence is talking about oil in general, not a specific oil already identified as the oil.

Icelandic does have a definite article, but it is usually attached to the noun as an ending rather than written as a separate word.

So:

• olía = oil
• olían = the oil
• olíu = oil (accusative)
• olíuna = the oil (accusative)

Here, the meaning is just enough oil, not enough of the specific oil, so no definite article is used.

Yes. A very common alternative is:

• Við eigum ekki nóg af olíu.

This also means We do not have enough oil.

The difference is mainly in structure:

• næga olíu = enough oil
• nóg af olíu = enough of oil / enough oil

Both are natural. Learners often meet both patterns.

A useful thing to notice:

• af takes the dative
• with olía, the dative singular is also olíu, so the form looks the same here

Usually, in a normal standalone sentence, you should keep við.

Even though eigum clearly shows 1st person plural, Icelandic does not regularly drop subject pronouns the way some languages do.

So the normal full sentence is:

• Við eigum ekki næga olíu.

If við is omitted, it may sound incomplete, context-dependent, or stylistically marked unless the situation makes the subject extremely obvious.

This sentence is a very useful model for several basic Icelandic patterns:

1. Subject + verb + ekki + object

   • Við eigum ekki ...

2. The verb agrees with the subject

   • við eigum

3. Direct objects often appear in the accusative

   • olíu

4. Adjectives agree with nouns in gender, number, and case

   • næga olíu

So this one sentence gives you practice with:

• verb conjugation
• negation
• accusative objects
• adjective agreement

That makes it a very good sentence to study closely.