効 きけない kike nai 1. Doesn't work; Ineffective ★ Common Verb #100082 Open Menu Add to collection... Open
効 きけます kikemasu 1. Can handle; Capable of 敬 敬 ★ Common Verb #103884 Open Menu Add to collection... Open
効 きけば kikeba 1. If it works; If it’s effective ★ Common Verb #103936 Open Menu Add to collection... Open