YOU SAID:

if i get 400 likes i get $1

INTO JAPANESE

私は400いいねを得る場合、私は$ 1を得る

BACK INTO ENGLISH

If I get 400 likes, I'll get one

INTO JAPANESE

私は400のいいねを得る場合、私は1つを取得します

BACK INTO ENGLISH

If I get 400 likes, I'll get one