мы с Джеком учились вместе в школе

мы с Джеком учились вместе в школе и с тех пор мы близкие друзья

Результаты (английский) 1:

We studied together with Jack at school and since then we close friends

Результаты (английский) 2:

Jack and I were together in high school and since then we are close friends

Результаты (английский) 3:

We are with the Ukrainian-american cooperation, however, enrolled in school, and since then, we have close friends