Pony hasn't seen such a beautiful girl before

`-` This is the most beautiful girl Pony has ever seen.

`->` S + has/have + not/never + such + a/an + adj + N + before.

`=` This is the + adj-est/most adj + + S + have/has + (ever) + P2.

`->` Beautiful là adj dài, thêm Most

`->` Đây là cô gái đẹp nhất mà Pony từng thấy.

Đáp án: She is the most beautiful girl Pony has ever seen.

`->` S + have/has not + P2 + such + (a/an) + adj + Noun + before

`=` S + tobe + so sánh nhất + Noun + S + have/has + ever + P2