Comparison among more than two things:

 No other teacher is so good as Senthil.

Senthil is better than all other teachers.

Senthil is the best of all the teachers.

How? Read this.

Comparison among more than two things:

Model – 7 (the + superlative)

·    Comparing unequal things.

·    No other + sub. + Singular verb + So – positive adjective – as +obj.

·    Sub + Singular verb +  Comparative adjective + than + all other + obj.

·    Sub + Singular verb + the Superlative adjective + of all + obj(plural).

Positive : No other fruit is so sweet as the mango.

Comparative: The mango is sweeter than all other fruits.

Superlative : The mango is the sweetest of all the fruits.

Positive. -- No other metal is so useful as iron.

Comparative. -- Iron is more useful than all other metals.

Superlative. -- Iron is the most useful of all metals.

(positive degree) No other boy is so tall as Amit.

(Comparative degree) Amit is taller than all other boys.

(superlative degree) Amit is the tallest of all boys.

Positive. -- No other democracy is so large as India.

Comparative. -- India is larger than all other democracies.

Superlative. -- India is the largest democracy of all.

Positive : No other metal is so costly as gold.

Comparative : Gold is costlier than all other metals.

Superlative : Gold is the costliest of all metals.

Positive : No other city in India is so big as Chennai.

Comparative : Chennai is bigger than all other cities in India.

Superlative : Chennai is the biggest city of all in India.

(positive degree) No other boy in the class is so clever as Abhishek.

(comparative degree) Abhishek is cleverer than all other boys in the class. 

(superlative degree) Abhishek is the cleverest boy of all in the class.

Positive. – No other city in India is so rich as Mumbai.

Comparative. -- Mumbai is richer than all other cities in India.

Superlative. -- Mumbai is the richest city of all in India.

Positive	Comparative	Superlative
No other dramatist is so great as Shakespeare.	Shakespeare is greater than all other dramatists.	Shakespeare is the greatest of all dramatists.

Comparison among more than two things:

Model – 8 (one of the + superlative)

·    Comparing unequal things.

·    Very few + sub. + plural verb + As – positive adjective – as +obj.

·    Sub + Singular verb +  Comparative adjective + than + most other + obj(plural).

·    Sub + Singular verb + one of the + Superlative adjective + obj(plural).

Positive : Very few cities in India are as big as Chennai.

Comparative : Chennai is bigger than most other cities in India.

Superlative : Chennai is one of the biggest cities in India.

(positive degree) Very few boys in the class are as clever as Abhishek.

(comparative degree) Abhishek is cleverer than most other boys in the class. 

(superlative degree) Abhishek is one of the cleverest boys in the class.

Positive. -- Very few cities in India are as rich as Mumbai.

Comparative. -- Mumbai is richer than most other cities in India.

Superlative. -- Mumbai is one of the richest cities in India.

Positive : Very few metals are as costly as gold.

Comparative : Gold is costlier than most other metals.

Superlative : Gold is one of the costliest of all metals.

Positive : Very few fruits are as sweet as the mango.

Comparative: Mango is sweeter than most other fruits.

Superlative : The mango is one of the sweetest of all the fruit.

Positive. – Very few metals are as useful as iron.

Comparative. – Iron is more useful than most other metals.

Superlative. -- Iron is one of the most useful of all metals.

(positive degree) Very few boys in the class are as tall as Amit.

(Comparative degree) Amit is taller than most other boys in the class.

(superlative degree) Amit is one of the tallest boy in the class.

Positive. – Very few democracies in the world are as large as India.

Comparative. – India is larger than most other democracies in the world.

Superlative. -- India is one of the largest democracy in the world.

Positive		Comparative		Superlative
Very few cities in England are so big as London	London is bigger than most other city in England.		London is one of the biggest cities in England.

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