My mother isn’t as tall as my father. -> My father is …………………………..

My mother isn’t as tall as my father. 
=> My father is taller than my mother.

 _____________________________ 

Mẹ tôi không cao bằng bố của tôi. 

=> Bố tôi cao hơn mẹ tôi. 

__________________________ 
- Dạng chuyển từ so sánh ngang bằng sang so sánh hơn 

S + is/ am/ are + not + as + adj + as + S 

=> S + is/ am/ are + adj-er + S