How to say “Want to study at lunch? I'll be in the library anyway, I've got a book due back today.” in Japanese
In Japanese
お昼、一緒に勉強しない?今日返さなきゃいけない本があるから、図書室にいるよ。
Ohiru, issho ni benkyō shinai? Kyō kaesanakya ikenai hon ga aru kara, toshoshitsu ni iru yo.