Questions & Answers about Hún heldur í reipið og brosir.
Hún is the nominative form, and nominative is used for the subject of the sentence.
Here, she is the one doing the actions:
- heldur
- brosir
So Icelandic uses hún.
By contrast, hana is the accusative/object form, used when her receives an action.
Heldur is the 3rd person singular present tense of halda.
So:
- að halda = to hold
- ég held = I hold
- þú heldur = you hold
- hún heldur = she holds
A learner may notice that the vowel changes from a in halda to e in heldur. That is just part of how this verb is conjugated.
Also, Icelandic verbs agree with person and number, not with gender, so:
- hann heldur
- hún heldur
- það heldur
all use the same verb form.