French verbs that end in -IER follow the same conjugation pattern as regular -ER verbs, but can look a little weird in certain conjugations(see page 1). Here are just a few of the most common regular -IER verbs:
apprécier to appreciate
associer to associate
bénéficier to benefit
certifier to certify
confier to confide
copier to copy
crier to shout
dédier to dedicate
défier to challenge
étudier to study
identifier to identify
justifier to justify
lier to bind, link
marier to marry
se méfier to mistrust
modifier to modify
multiplier to multiply
négocier to negotiate
nier to deny
plier to fold, bend
prier to pray
rectifier to rectify
remercier to thank
répudier to repudiate
simplifier to simplify
skier to ski
spécifier to specify
vérifier to verify



