Постройте отрицательное предложение: I often met my classmate at the gym last summer

Question

Постройте отрицательное предложение: I often met my classmate at the gym last summer

Answer 1

I don't often met my classmate the gym last summer.

Answer 2

I didn't often met my classmate at the gym last summer ( это предложение в прошедшем времени поэтому didn't )