Degrees of comparison

Welcome to the World of Comparing!

Have you ever noticed that we compare things all day long? You might have a big apple, but your friend has a bigger one, and the teacher has the biggest apple of all! In English grammar, we call these Degrees of Comparison.

Don’t worry if this seems a bit confusing at first. We are going to break it down step-by-step so you can ace your HKAT exam. By the end of these notes, you’ll be a pro at describing who is the fastest, the smartest, or the most helpful!

Section 1: The Three Levels of Comparison

There are three "levels" we use when we want to describe or compare things:

1. Positive Degree: This is the basic form of an adjective. We use it when we are talking about only one person or thing.
Example: "Tom is tall."

2. Comparative Degree: We use this when we are comparing two people or things.
Example: "Tom is taller than Jerry."
Memory Trick: Look for the word than. It’s like a signpost telling you that a comparison is happening!

3. Superlative Degree: We use this when we compare three or more people or things. It shows the "top" or "extreme" level.
Example: "Tom is the tallest boy in the class."
Memory Trick: Always put the word the before a superlative adjective!

Key Takeaway: Use Positive for one, Comparative for two, and Superlative for three or more.

Section 2: Rules for Short Words (1-Syllable Adjectives)

For short words like fast, small, or high, the rules are very simple. Think of these as "adding a tail" to the word.

• Comparative: Add -er to the end.
• Superlative: Add -est to the end.

Example: Small → Smaller → Smallest

Important Spelling Rules for Short Words:

Sometimes the spelling changes slightly before we add the tail:

1. Words ending in 'e': Just add -r or -st.
Example: Large → Larger → Largest

2. Words ending in "Consonant-Vowel-Consonant" (like b-i-g): Double the last letter before adding the tail.
Example: Big → Bigger → Biggest

3. Words ending in 'y': Change the 'y' to 'i' then add the tail.
Example: Happy → Happier → Happiest

Quick Review: Short words love to grow "tails" (er/est). Just watch out for the 'y' and double-letter spelling traps!

Section 3: Rules for Long Words (2 or more Syllables)

Some words are already very long, like beautiful, expensive, or difficult. If we added "er" or "est" to these, they would be very hard to say! (Imagine saying beautifuler—it sounds funny, right?)

Instead of adding a tail, we put a "helper word" in front of the adjective:

• Comparative: Use the word more.
Example: "This book is more interesting than that one."

• Superlative: Use the word most.
Example: "This is the most interesting book I have ever read."

Did you know? Most adjectives ending in -ful, -ing, -ous, and -able always use more and most because they are long words!

Key Takeaway: Short words use -er/-est. Long words use more/most. Never use both at the same time!

Section 4: The "Rebel" Adjectives (Irregular Forms)

A few adjectives don't follow any rules at all. They are like rebels—they change their whole name! You need to memorize these because they appear often in the HKAT.

1. Good → Better → Best
Example: "I am good at English. My sister is better than me. My mom is the best!"

2. Bad → Worse → Worst
Example: "The weather was bad. Today it is worse than yesterday. It is the worst storm of the year!"

3. Many/Much → More → Most
Example: "I have many stickers. You have more stickers than I do."

Don't worry if this seems tricky! There are only a few of these rebels. Once you know them, you'll never get them wrong.

Section 5: Common Mistakes to Avoid

Even the best students sometimes make these mistakes. Keep an eye out for them:

• Double Comparison: Never use "more" and "-er" together.
Wrong: "He is more taller."
Right: "He is taller."

• Forgetting "The": Always use "the" with superlatives.
Wrong: "He is tallest boy."
Right: "He is the tallest boy."

• Using "Than" with Superlatives: "Than" is only for comparing two things.
Wrong: "He is the tallest than all."
Right: "He is taller than Joe" OR "He is the tallest of all."

Final Quick Summary

1. Positive: No comparison. (fast)
2. Comparative: Compare two things. Look for than. Add -er or use more. (faster / more beautiful)
3. Superlative: Compare three or more. Look for the. Add -est or use most. (fastest / most beautiful)
4. Irregulars: Remember good/better/best and bad/worse/worst!

You are now ready to practice! Just remember to count how many things you are comparing, and you will choose the right degree every time!