When I was in elementary school, I used to go to school in my skiwear.
When I was in elementary school, I used wear my skiwear to school.
ご質問ありがとうございます。
・「When I was in elementary school, I used to go to school in my skiwear.」
「When I was in elementary school, I used wear my skiwear to school.」
＝「小学生の頃、スキーウェアで学校に通っていました。」
（例文１）When I was in elementary school, I used to go to school in my skiwear because it always snowed in my hometown.
（訳１）私の故郷ではいつも雪が降ったため、小学生の頃スキーウェアで学校に通っていました。
（例文２）Since I lived in town that snowed often, when I was in elementary school, I used wear my skiwear to school.
（訳２）私の故郷では頻繁に雪が降ったため、小学生の頃スキーウェアで学校に通っていました。
お役に立てれば嬉しいです。
Coco
日本 
