[文法] Why does it use ing form here?

看板Eng-Class (英文板)作者 (見習生_O7)時間7年前 (2018/05/27 08:15), 7年前編輯推噓1(103)
留言4則, 1人參與, 7年前最新討論串1/1
"Switching gears for a second" Could someone tell me why does it use ing form in the sentence, not verb? If I want to express it's the second day I start to practice English, Should I say "Practing English on day 2" or "Practice English on day 2" or other ways? and if there are some other mistakes in grammar in the post please tell me. I want to prove my grammar. -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 111.254.18.171 ※ 文章網址: https://www.ptt.cc/bbs/Eng-Class/M.1527380140.A.028.html ※ 編輯: jeffguoft (111.254.18.171), 05/27/2018 08:18:09

06/03 23:10, 7年前 , 1F
Day two of practicing English
06/03 23:10, 1F

06/03 23:13, 7年前 , 2F
Practicing English on day two, means on day 2 of "so
06/03 23:13, 2F

06/03 23:13, 7年前 , 3F
mething", (ex. the summer holidays) your choice of
06/03 23:13, 3F

06/03 23:13, 7年前 , 4F
activity is to practice English.
06/03 23:13, 4F
文章代碼(AID): #1R2VYi0e (Eng-Class)
文章代碼(AID): #1R2VYi0e (Eng-Class)