which are the technical names for these verb transforms?


what are the Japanese, and English, technical terms for these verb transforms:

読める、買える、書ける、...

and this: 読まれる、買われる、書かれる、...

and this: 読ませる、買わせる、書かせる、...

Is there a standard term that textbooks use to call the changing of verb stems
into those 3 different forms? "Verb conjugation" sounds natural, however
"conjugate" does not sound correct in the context.

What do Japanese students call the changing of verbs into those 3 different
forms?

thanks.




> 読める、買える、書ける、... → **Potential Form (可能形)**
>
> and this: 読まれる、買われる、書かれる、... → **Passive form (受け身形)**
>
> and this: 読ませる、買わせる、書かせる、... → **Causative form (使役【しえき】形)**

"Conjugation" is correct, and you can say `動詞の活用（形）`.




> 読める、買える、書ける、... → **Potential Form (可能形)**
>
> and this: 読まれる、買われる、書かれる、... → **Passive form (受け身形)**
>
> and this: 読ませる、買わせる、書かせる、... → **Causative form (使役【しえき】形)**

"Conjugation" is correct, and you can say `動詞の活用（形）`.

