YOU SAID:

I gained 21 pounds during quarantine and I'm still gaining more and more everyday.

INTO JAPANESE

私は検疫中に21ポンドを得て、私はまだますます毎日を得ています。

BACK INTO ENGLISH

I got 21 pounds during quarantine and I'm still getting more and more every day.

INTO JAPANESE

私は検疫中に21ポンドを得て、私はまだ毎日ますます多くを得ています。

BACK INTO ENGLISH

I got 21 pounds during quarantine and I'm still getting more and more every day.