in high school
Yo tocaba la flauta cuando estaba en el instituto.
I used to play the flute when I was in high school.
Cuando estaba en el instituto me sabía un montón de chistes.
When I was in high school I knew a lot of jokes.
Hice tres años de francés en el instituto.
I studied French for three years in high school.
They were boyfriend and girlfriend in high school.
Usted y yo hicimos el examen en el instituto, tras el mismo pupitre.
You and I took the exam at the high school, behind the same desk.
— La infancia de Iván (1962)
At school.
Allí pueden graduarse en el instituto.
They can graduate from high school there.
— Systemsprenger (2019)
Bob era tímido cuando estudiaba en el instituto.
Bob was shy when he was in high school.