Questions & Answers about Hópurinn fer í skóginn á mánudögum.
Hópur means a group (indefinite: any group).
Hópurinn means the group (definite: a specific group already known from context).
In Icelandic, the definite article (the) is usually attached to the end of the noun as a suffix instead of being a separate word.
- hópur = group
- hópurinn = the group
So in this sentence, hópurinn is talking about a particular group that both speaker and listener know about.
Hópurinn is:
- nominative case (the “subject” case),
- singular,
- masculine,
- and it is the subject of the verb fer.
So it literally means the group as the doer of the action goes.