The arrangement is that if you forget your library card, you write your name on the form at reception.

How to say “The arrangement is that if you forget your library card, you write your name on the form at reception.” in Japanese

In Japanese

利用者(りようしゃ)カードを忘(わす)れたら、受付(うけつけ)で用紙(ようし)に名前(なまえ)を記入(きにゅう)することになっています。

Riyōsha kādo o wasuretara, uketsuke de yōshi ni namae o kinyū suru koto ni natte imasu.

Learn it in a lesson

The arrangement is that if you forget your library card, you write your name on the form at reception. in other languages