* Cấu trúc so sánh hơn 

S + be + adj-er/ more adj + than S2

* So sánh nhất 

S + be + the adj-est/ the most adj

* So sánh bằng 

S1 + be + as adj as + S2

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`1.` That watch is better than this one

`2.` This is the most interesting story that I have ever read

`3.` I've never known the most beautiful girl before 

`4.` Tom drives more carefully than Petter 

`1.` That watch is better than this one.

`-` So sánh hơn ( tính từ ngắn ) : S1 + V + adj-er + than + S2

`2.` This is the most interesting story that I have ever read.

`-` This is the Superlative (...est/ most ADJ N) S +have/has+P2

`=>` S +have/ has + never + P2+ such a/an+ ADJ+ N

`3.` I've never known such a beautiful girl before.

`-` This is the Superlative (...est/ most ADJ N) S +have/has+P2

`=>` S +have/ has + never + P2+ such a/an+ ADJ+ N

`4.` Tom drives more carefully than Petter.

`-` So sánh không ngang bằng :  S2 + V + not + so/as + adj + as + S1

`=>` So sánh hơn : S1 + V + adj-er /  more + adj + than + S2