Questions & Answers about Mig grunar að hún sé þegar komin heim.
Because gruna is commonly used as an impersonal verb in Icelandic.
That means the person who has the suspicion is not put in the nominative as a normal subject. Instead, that person appears in the accusative:
- mig grunar = I suspect
- þig grunar = you suspect
- okkur grunar = we suspect
So mig is not a direct translation of English I; it is part of the Icelandic pattern used with this verb.
For the same reason: gruna is used impersonally here.
Since there is no normal nominative subject like ég, the verb appears in the default 3rd person singular form:
- mig grunar
- þig grunar
- hana grunar
The verb does not change to match mig.