COMPARATIVE AND SUPERLATIVE

Formation of Comparative Adjectives

There are two ways to make or form a comparative adjective:

• short adjectives: add "-er"
• long adjectives: use "more"

Short adjectives
1-syllable adjectives	old, fast
2-syllable adjectives ending in -y	happy, easy
Normal rule: add "-er"	old → older
Variation: if the adjective ends in -e, just add -r	late → later
Variation: if the adjective ends in consonant, vowel, consonant, double the last consonant	big → bigger
Variation: if the adjective ends in -y, change the y to i	happy → happier
Long adjectives
2-syllable adjectives not ending in -y	modern, pleasant
all adjectives of 3 or more syllables	expensive, intellectual
Normal rule: use "more"	modern → more modern expensive → more expensive

With some 2-syllable adjectives, we can use '-er' or 'more':

• quiet → quieter/more quiet
• clever → cleverer/more clever
• narrow → narrower/more narrow
• simple → simpler/more simple

Exception
The following adjectives have irregular forms:

• good → better
• well (healthy) → better
• bad → worse
• far → farther/further

Use of Comparative Adjectives

We use comparative adjectives when talking about 2 things (not 3 or 10 or 1,000,000 things, only 2 things).

Often, the comparative adjective is followed by "than".

Look at these examples:

• John is 1m80. He is tall. But Chris is 1m85. He is taller than John.
• America is big. But Russia is bigger.
• I want to have a more powerful computer.
• Is French more difficult than English?

If we talk about the two planets Earth and Mars, we can compare them as shown in the table below:

	Earth	Mars
Diameter (km)	12,760	6,790	Mars is smaller than Earth.
Distance from Sun (million km)	150	228	Mars is more distant from the Sun.
Length of day (hours)	24	25	A day on Mars is slightly longerthan a day on Earth.
Moons	1	2	Mars has more moons than Earth.
Surface temperature (degrees Celcius)	22	-23	Mars is colder than Earth.

Although we use comparative adjectives when talking about two things (not three or more things), in fact one or both of the things may be a group of things.

• Mt Everest is higher than all other mountains.

Here, we are talking about hundreds of mountains, but we are still comparing one thing (Mt Everest) to one other thing (all other mountains).

Superlative Adjectives

A superlative adjective expresses the extreme or highest degree of a quality. We use a superlative adjective to describe the extreme quality of one thing in a group of things.

In the example below, "biggest" is the superlative form of the adjective "big":

A B C A is the biggest.

In this lesson we will look first at how we make superlative adjectives, and then at how we use them:

Formation of Superlative Adjectives

As with comparative adjectives, there are two ways to form a superlative adjective:

• short adjectives: add "-est"
• long adjectives: use "most"

We also usually add 'the' at the beginning.

Short adjectives
1-syllable adjectives	old, fast
2-syllable adjectives ending in -y	happy, easy
Normal rule: add "-est"	old → the oldest
Variation: if the adjective ends in -e, just add -st	late → the latest
Variation: if the adjective ends in consonant, vowel, consonant, double the last consonant	big → the biggest
Variation: if the adjective ends in -y, change the y to i	happy → the happiest
Long adjectives
2-syllable adjectives not ending in -y	modern, pleasant
all adjectives of 3 or more syllables	expensive, intellectual
Normal rule: use "most"	modern → the most modern expensive → the most expensive

With some 2-syllable adjectives, we can use '-est' or 'most':

• quiet → the quietest/most quiet
• clever → the cleverest/most clever
• narrow → the narrowest/most narrow
• simple → the simplest/most simple

Exception
The following adjectives have irregular forms:

• good → the best
• bad → the worst
• far → the farthest/furthest

Use of Superlative Adjectives

We use a superlative adjective to describe one thing in a group of three or more things. Look at these examples:

• John is 1m75. David is 1m80. Chris is 1m85. Chris is the tallest.
• Canada, China and Russia are big countries. But Russia is the biggest.
• Mount Everest is the highest mountain in the world.

If we talk about the three planets Earth, Mars and Jupiter, we can use superlative adjectives as shown in the table below:

	Earth	Mars	Jupiter
Dia- meter (km)	12,760	6,790	142,800	Jupiter is the biggest.
Dis- tance from Sun (million km)	150	228	778	Jupiter is the most distantfrom the Sun.
Length of day (hours)	24	25	10	Jupiter has the shortest day.
Moons	1	2	16	Jupiter has the most moons.
Surface temp. (degrees Celcius)	22	-23	-150	Jupiter is the coldest.

When we compare one thing with itself, we do not use "the":

• England is coldest in winter. (not the coldest)
• My boss is most generous when we get a big order. (not the most generous)