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. (Negative
James 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)
Iron is a heavy metal. (Affirmative) / Iron is not a light metal. (Negative)
Rahul is the tallest boy in the class. (Affirmative) / No other boy in the class is as tall as Rahul. (Negative)
