ei pære · pear
Feminine (ei)
Indefinite singular
ei pære
Definite singular
pæra
Indefinite plural
pærer
Definite plural
pærene
Feminine nouns (ei) can always be written with en as well: ei bok, boka or en bok, boken. Both are correct Bokmål.
How to guess the gender Nouns: gender and articles