I usually buy milk every week, and normally I boughtuy it on Tuesdays. I usually buy milk every week, and normally I buy it on Tuesdays.

To describe something that is generally true and continues to be true in the present, use present tense (hence, buy instead of bought).

So I it was at ten o´ 'clock , because people usually go to the supermarket after this time in the morning go to supermarket . So it was at ten o'clock, because people usually go to the supermarket after this time in the morning.

When I coame , only a few people were buyshopping. When I came, only a few people were shopping.

When I came out , several people were there. When I came out, several people were there.

Although I bought only aI only go shopping one day at week , this week I don´t idn't buy meat, but the bakery was with thehad cakes ion offer ,sale, so I bought some cakes. Although I only go shopping one day a week, this week I didn't buy meat, but the bakery had cakes on sale, so I bought some cakes.

I paid with my credit card, and when I was in the street , I saw my friend Carlos. I paid with my credit card, and when I was in the street, I saw my friend Carlos.

We were talking about theis year's big problem of this year: T: the pandemic. We were talking about this year's big problem: the pandemic.

Ten minutes lafter, we said bye and I came home. Ten minutes later, we said bye and I came home.