There is a family of -re verbs that are conjugated a bit differently to regular -re verbs. Among them are the common verbs prendre(to take), apprendre(to learn) and comprendre(to understand).
There's a full list at the bottom of this page.
Singular Endings
The endings in the singular are the same as regular -re verbs. Note that the final -d of the stem remains, as you would expect:
PRENDRE
je
→
prends
tu
→
prends
il/elle/on
→
prend
Plural Endings
In the plural conjugations the d of the stem prend- goes away, and for ils/elles the n is doubled.