What is the negative form of the sentence "He is the best boy in the class"?

• The negative form of the sentence "He is the best boy in the class" is ''No other boy in the class is as good as he.''
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• Sentence Structure: 
- No other + Superlative degree এর পরের অংশ + Verb + So/as + Superlative degree এর Positive form + as + প্রদত্ত Sentence এর Subject.
সুতরাং, নিয়মানুযায়ী সঠিক উত্তর - No other boy in the class is as good as he.

Source: A Passage to the English Language by S. M. Zakir Hussain.