Questions & Answers about Jeg merker at du er trøtt.
at is the subordinating conjunction equivalent to “that.” It links the main clause (Jeg merker) with the subordinate clause (du er trøtt).
• In formal writing and speech, you should always include at.
• In casual spoken Norwegian, you might hear people drop it (e.g., Jeg merker du er trøtt), but that’s considered colloquial.
Unlike German, Norwegian subordinate clauses do not push the verb to the end. They keep the verb in second position. So the structure is:
1) du (subject)
2) er (verb)
3) trøtt (complement)