Japanese by Example
Learning through examples in manga

Asking to teach with 〜てもいい

ご注文はうさぎですか? » Volume 1 » Page 85

When Syaro is invited to study at the library with the others, she considers Rize may praise her for helping the others. She says she may be okay with teaching them.

シャロ:
「そ そんなに()うなら(おし)えてあげてもいいかなー」