We can change affirmative sentences to negative sentences without changing the meaning of the original sentence.Study the example given below.All the students liked the program. (Affirmative) / None of the students DISLIKED the program. (Negative) / No student disliked the program. (Negative)Chennai is hotter than Mumbai. (Affirmative) / Mumbai is not as hot as Chennai. (Negative)The scorpion is shyer than other wall inhabitants. (Affirmative) / No other wall inhabitant is as SHY as the scorpion. (Negative)The farmer was too WEAK to walk. (Affirmative) / The farmer was so weak that he could not walk. (Negative)He is always on time. (Affirmative) / He is never late. (Negative)James runs faster than PETER. (Affirmative) / Peter does not run as fast as James. (Negative)The water is too cold for me to drink. (Affirmative) / The water is so cold that I cannot drink it. (NegativeJames can write faster than me. (Affirmative) / I cannot write as fast as James. (Negative)Everyone found the play INTERESTING. (Affirmative) / No one found the play uninteresting. (Negative)This medicine is cheap. (Affirmative) / This medicine is not expensive. (Negative)