1. When we want to compare two things ,
we often use an adjectives.
We have different forms to do this.

2. Comparison
with
-er/-est

3. Adjetives
with
one syllable
Clean Cleaner Cleanest
Slow Slower Slowest
Neat Neater Neatest
Fast Faster Fastest
Cheap Cheaper Cheapest

4. If a one syllable adjective ends in a single vowel letter
followed by a single consonant letter, the consonant letter is
doubled
Big Bigger Biggest
If an adjective ends in a consonant followed by “y” is replaced
by “i”
Dry Drier Driest

5. Adjetives with Two syllables
Ending in -y
Lucky Luckier Luckiest
Happy Happier Happiest
Pretty Prettier Prettiest
Ending in -le
Simple Simpler Simplest
Ending in -ow
Narrow Narrower Narrowest

6. Comparison
with
-More -Most
Most More
Expensive Expensive Expensive
Intelligent Most More
Intelligent Intelligent
Difficult Most More
Difficult Difficult

7. Irregular
Verbs

8. Clean Cleaner Cleanest
Good Better Best
Little Less Least
Much More Most
Bad Worse Worst