Questions & Answers about Þau flytja inn á morgun.
Þau means they, but specifically the neuter plural form of they.
In Icelandic, they has different forms depending on grammatical gender:
- þeir = they (masculine)
- þær = they (feminine)
- þau = they (neuter)
Þau is often used:
- for a group of people that includes different genders
- for children
- for neuter plural nouns
So in this sentence, þau most likely means they referring to a mixed group or a context where neuter is appropriate.
Because Icelandic distinguishes they by gender.
A native English speaker is used to just one form, they, but Icelandic requires you to choose:
- þeir for a masculine group or a mixed group in many contexts
- þær for an all-feminine group
- þau for neuter groups, children, or sometimes people when the context calls for the neuter form
So the sentence uses þau because the speaker is referring to a group understood as neuter in context. Without more context, you cannot tell exactly why, only that þau is the form chosen.