lärarens
Lärarens is the possessive form of the Swedish noun lärare, meaning "the teacher's." Lärare is a common-gender noun used for a single teacher; the definite singular form is läraren. The possessive is formed by adding the suffix -s to the definite form, yielding lärarens. The plural definite form is lärarna, and the plural possessive is lärarnas (the teachers').
The -s possessive is used to indicate ownership by a single teacher or by a group of
Etymology and notes: The noun lärare comes from older forms meaning "one who teaches," with the agent-suffix