Breakdown of Hún er ekki vön að borða kjúkling á kvöldin, svo hún velur frekar núðlur.
Questions & Answers about Hún er ekki vön að borða kjúkling á kvöldin, svo hún velur frekar núðlur.
Because vön agrees with hún, which is feminine singular.
The adjective is vanur = accustomed / used to, and it changes form depending on gender, number, and case:
- vanur = masculine singular
- vön = feminine singular
- vant = neuter singular
So:
- Hann er vanur ... = He is used to ...
- Hún er vön ... = She is used to ...
- Það er vant ... = It is used to ... (less common in this exact meaning)
In your sentence, the subject is hún, so vön is the correct form.
This is a very common Icelandic pattern meaning to be used to doing something or to be accustomed to doing something.
So:
With ekki, it becomes:
- Hún er ekki vön að borða kjúkling
= She is not used to eating chicken
This is one of the standard ways to express be used to + -ing in English.