hostiases

form-of imperfect second-person singular subjunctive

hostiarの二人称単数未完了接続法

English Meaning

second-person singular imperfect subjunctive of hostiar

Si tú hostiases a tus compañeros sin motivo, ellos se sentirán incómodos.

もしあなたが理由もなく仲間を苛むなら、彼らは不快に感じるでしょう。

If you were to annoy your classmates without reason, they would feel uncomfortable.