Questions & Answers about Han trykker på knappen.
In Norwegian the verb trykke needs the preposition på when you “press on” something. You can treat trykke på as a single unit (a phrasal verb) meaning to press.
• In English you say press a button, but in Norwegian you always say trykker på knappen.
• Never say trykker knappen—that is ungrammatical.
• You’ll see the same pattern with other verbs: vente på (wait for), kikke på (take a look at), satse på (rely on).
knappen is the definite singular of knapp (button). Norwegian nouns have these forms:
• Indefinite singular: en knapp
• Definite singular: knappen
Here you’re referring to a specific, known button—hence the definite form knappen.
Use the indefinite form en knapp:
Han trykker på en knapp.
This means “He presses a button” (any button), whereas Han trykker på knappen means “He presses the (specific) button.”