Explanation
Expresses 'worth doing' for verbs.
Formation
Verb-stem + がい
Detailed explanation
The ～がい grammar point is used to express that an action is worth doing or to emphasize the value and importance of doing something. It is attached to verbs in their stem form and can be translated as 'worth doing' in English.
Examples
この本は読みがいがあります。
Kono hon wa yomi-gai ga arimasu.
This book is worth reading.
早起きしがいがあると思いますよ。
Hayaoki shigai ga aru to omoimasu yo.
I think it's worth waking up early.
長い時間をかけがいのある仕事だ。
Nagai jikan o kake-gai no aru shigoto da.
It's a job worth spending a long time on.
彼とは話しがいがあるでしょう。
Kare to wa hanashi-gai ga aru deshō.
It's worth talking to him.
Practice
Grammar content sourced from hanabira.org.