Questions & Answers about Billetten kan købes i appen.
Why does købes end in an 's' here?
This is the s-passive form. The base infinitive is købe (to buy). By adding an -s, it becomes købes (to be bought). We use the infinitive form here because it comes right after the modal verb kan (can).
Could I use the blive passive instead of the s-passive for this sentence?
Yes, you could also say Billetten kan blive købt i appen. However, the s-passive (kan købes) is very common and often preferred after modal verbs like kan, skal, and må, especially for general rules or instructions.
Why is there a double 't' in billetten?
The base noun is en billet (a ticket). When we add the definite ending -en to mean 'the ticket', Danish doubles the final consonant because the stress is on that last syllable. This spelling rule keeps the vowel sound from changing.
How do English loanwords like 'app' work with Danish definite endings?
They usually just follow regular Danish noun rules! Since the word is treated as a common-gender noun (en app), it simply takes the standard -en ending to become appen (the app).