potessi

first-person form-of imperfect second-person singular subjunctive

potereの一人称/二人称単数接続法過去形

English Meaning

first/second-person singular imperfect subjunctive of potere

Se potessi viaggiare nel tempo, visiterei prima l'antico Egitto.

もし時間旅行ができたら、まず古代エジプトを訪れるでしょう。

If I could travel through time, I would first visit ancient Egypt.