regalarien

conditional form-of plural third-person

『regalar』という動詞の、三人称複数条件法形です。

English Meaning

third-person plural conditional form of regalar

Si fos el seu aniversari, ells regalarien un llibre ple de dedicatories.

もしそれが彼女の誕生日なら、彼らは寄せ書きの詰まった本を贈るだろう。

If it were her birthday, they would give a book full of dedications.