A Danish adjective adds -t with an et-word and -e in the plural or after a definite word: et træt barn, trætte børn, den trætte mand. After er the same rule applies, so jeg er træt but vi er trætte.
Examples
- I dag er jeg træt.
- Today I am tired.
- Vi er glade for det nye hus.
- We are happy about the new house.
- Barnet er ked af det.
- The child is sad.
The mistake to avoid
Ked af det never changes, because it is a fixed phrase, not a plain adjective.
Where this fits in
Body, health & feelings, Danish A2: Talk about your body, common illnesses, and how you feel. Visit a doctor or pharmacy and describe symptoms.