"Do teachers have bicycles?"
Translation:Har lærere sykler?
Why is the plural of teachers lærere and not lærer? How is the singular 'teacher' spelled?
en lærer - a teacher
læreren - the teacher
lærere - teachers
lærerne - the teachers
As to your question why... no idea :) maybe somebody else can help you with that ;)
Whether it's the actual reason I cannot say but certainly to help you remember the rule you can consider the idea that words ending -erer or -erene are simply awkward to say and to hear. In everyday conversation they are spoken as -ere and -erne, and over time this becomes the accepted rule.
'lærer' is the singular. Nouns ending in -er in indefinite singular, ends in -ere in indefinite plural.