Grammar · Lesson 13

Comparatives and superlatives

Make the scale and the comparison set clear: Cedar is quieter than Maple. Maple is the largest of the three rooms. Pine is as quiet as Maple.

50–60 min corescale · reference · comparison set-er / -est · more / most · as...as15–20 min listening and retrieval

NoticeRead one room table before making comparisons.

DiscoverSeparate a reference comparison from an extreme in a set.

BuildControl form, spelling, equality, degree, and articles.

UseRecommend a fictional event room from stated criteria.

Can-do: By the end, you can compare two values, identify an extreme within a defined set, express equal or unequal degree, and justify a recommendation with exact evidence.

Two-minute retrieval

Three checks from earlier lessons

Use the stated description, subject, or future stance.

1The room has very little noise, so the base adjective is .

2The plural subject rooms takes plural present be: The rooms available.

3The coordinator gives a neutral belief about tomorrow: I think the event busy.

Notice the evidence before the grammar

Three rooms at Harbor Center

room	area	hourly price	background noise	chairs
Pine	30 m²	$40	35 dB	24
Cedar	42 m²	$55	30 dB	32
Maple	50 m²	$70	35 dB	40

Cedar is larger than Pine. Maple is the largest of the three rooms. Pine is as quiet as Maple. Cedar is the quietest room in this set.

Which sentence compares one room with a reference room?
Which sentences locate an extreme inside the three-room set?
Which two rooms occupy the same point on the noise scale?

Discovery check: connect grammar to the table

1Cedar has 42 m² and Pine has 30 m²: Cedar is than Pine.

2Maple has more area than both other rooms: Maple is the of the three rooms.

3Pine and Maple both measure 35 dB: Pine is Maple.

4To name Pine as Cedar’s reference, use the comparison word: Cedar is quieter Pine.

5No possessive comes before this superlative, so use the usual article: Cedar is quietest room.

6The claim needs a defined comparison set: Maple is the most expensive .

Get to the root: choose a scale, reference, and set

A comparative locates one value relative to another reference on the same scale: Cedar is quieter than Maple. The reference can be one item, a previous situation, or a group: Cedar is quieter than the other rooms. A comparative does not require exactly two physical things.

A superlative locates an extreme inside a defined set: Cedar is the quietest of the three rooms. The set matters. Cedar may be the quietest in this list without being the quietest room in the entire building.

meaning job	frame	evidence
relative difference	Cedar is quieter than Maple.	30 dB compared with 35 dB
extreme in a set	Cedar is the quietest of the three.	30 dB is the lowest value in this set
equal degree	Pine is as quiet as Maple.	both measure 35 dB
unequal degree	Pine is not as large as Cedar.	30 m² does not reach 42 m²

A superlative does not guarantee one unique winner. Two items can share an extreme: if Pine and Maple both cost $40, they are the joint cheapest rooms. Say one of the cheapest rooms when an item belongs to a top group.

Build the form without a false syllable shortcut

adjective pattern	comparative	superlative
most one-syllable: small, fast	smaller, faster	the smallest, the fastest
final silent e: large, nice	larger, nicer	the largest, the nicest
consonant + y: busy, happy	busier, happier	the busiest, the happiest
some common two-syllable: simple, quiet, narrow	simpler, quieter, narrower	the simplest, the quietest, the narrowest
most other two-syllable and longer: useful, modern, comfortable	more useful, more modern, more comfortable	the most useful, the most modern, the most comfortable

Two-syllable adjectives do not follow one perfect mechanical rule. Endings such as -y, -er, -ow, and syllabic -le often take -er / -est, but usage varies. Learn the common form with the adjective. Some forms coexist, such as cleverer and more clever.

Precise spelling conditions

Add only -r / -st after final silent e: large → larger → largest. Change consonant plus y to i: busy → busier → busiest, but keep the y after a vowel in gray → grayer → grayest.

Double a final consonant in a one-syllable consonant-vowel-consonant spelling with a short stressed vowel: big → bigger, hot → hottest. Do not double final w, x, or y: newer, laxer, grayer.

Drill 1: build the form from the exact condition

1Route A takes 20 minutes and Route B takes 30: Route A is than Route B.

2Maple has the greatest area in the set: It is the room in the set.

3Cedar has 42 m² and Pine has 30 m²: Cedar is than Pine.

4The center serves more visitors on Saturday than on every other day: Saturday is its day.

5Cedar measures 30 dB and Maple 35 dB: Cedar is than Maple.

6Room B has a projector and Room A does not, so B is for a presentation.

7Cedar scores 5 out of 5 and Pine scores 3 out of 5 for comfort: Cedar is for comfort.

8Route C has the lowest rating of all three routes: It is the of the three by rating.

Irregulars, articles, and comparison frames

base	comparative	superlative	note
good	better	the best	not gooder or more good
bad	worse	the worst	not badder or more bad
far	farther / further	the farthest / furthest	both occur for distance; further also means additional

Current U.S. English uses both farther and further for physical distance. Farther makes the physical-distance meaning especially clear; further is also the normal choice for abstract or additional extent: further information.

Use the before an adjective superlative when no determiner replaces it: the largest room. A possessive already fills that position: our largest room, not our the largest room. A superlative reference can be omitted when the set is already clear: Which room is cheapest?

Equal, unequal, and measured differences

Use base adjective inside as + adjective + as for equal degree: Pine is as quiet as Maple. Use not as...as when the first item does not reach the same degree: Pine is not as large as Cedar.

The meaning follows the adjective’s scale. The delay was not as bad as yesterday’s means today’s delay had a lower degree of badness, so it was better. Do not replace this meaning with a mechanical rule that always says “less” without checking the adjective.

degree message	natural frame	example
large difference	much / far / a lot + comparative	Maple is much larger than Pine.
small difference	a little / slightly + comparative	Cedar is a little more expensive than Pine.
exact difference	amount + comparative	Cedar is $15 more expensive than Pine.
equal multiple	twice as + adjective + as	Room X is twice as large as Room Y.

Use one comparative marker: larger or more comfortable, not more larger. Degree modifiers such as much better are different: better marks the comparison, and much describes its size. Do not say very bigger.

Drill 2: complete the comparison frame

1Pine and Maple both measure 35 dB: Pine is Maple.

2Pine has 30 m² and Cedar has 42 m², so Pine is Cedar.

3Maple has 50 m² and Pine has 30 m², a clearly substantial difference: Maple is Pine.

4Cedar costs $55 and Pine costs $40 per hour: Cedar is Pine.

5The center owns the room, so its possessive replaces the: Maple is .

6Pine and Oak share the building’s lowest hourly price: Pine is in the building.

Sound natural: stress the scale, lighten the frame

In relaxed U.S. English, than is often weak /ðən/, while the compared items and adjective root carry stronger beats: CEdar is QUIeter than MAple. The -er ending is normally weak. In words such as better and hotter, the middle t often sounds like the quick flap heard in U.S. water.

The superlative ending -est adds a weak syllable after many roots: fastest, quietest. Keep the light unless it is contrastive. In as QUIET as, both instances of as are usually weak and the adjective holds the main stress.

Listen: find the scale and set

Your teacher reads each fictional line once naturally and once more slowly. Listen for weak frame words, strong adjective roots, and the evidence relationship. Check your answer before discussing the line with your tutor.

Tutor-read listening check

1. What is Cedar compared with in Clip 1?

2. What comparison set limits the claim in Clip 2?

3. What equality does Clip 3 express?

4. What does Clip 4 establish?

5. What exact difference does Clip 5 give?

6. Why does Clip 6 use one of?

Read a recommendation from the evidence

Room request: 30 people, a discussion activity, and a $60 hourly limit

Pine is cheaper than Cedar, but it only has 24 chairs. Maple is the largest room, but at $70 per hour, it is more expensive than the client’s limit. Cedar has 32 chairs and costs $55 per hour. It is quieter than both Pine and Maple. For this group’s size, activity, and budget, Cedar is the best match of the three.

Read, then choose the exact evidence

1. Why does the writer reject Pine?

2. Which criterion excludes Maple?

3. Why is Cedar the best match for this request?

Build the comparison and set

Drill 3: build the reference comparison

Cedar measures 30 dB; Maple measures 35 dB.

Drill 4: build the superlative set

Maple has the greatest area in the three-room list.

Notice and repair three high-value errors

Drill 5: one comparative marker

The room note says, “Maple is more larger than Cedar.” Tap the word to remove.

Drill 6: equality uses the base adjective

The data summary says, “Pine is as quieter as Maple.” Tap the word to repair.

Drill 7: article or possessive?

The coordinator says, “Maple is our the largest room.” Tap the word to remove.

Oral transform: change one comparison decision

Say every response before revealing it.

1 Cedar is quiet. Compare it with Maple from the table.

Cedar is quieter than Maple.

2 Maple has the greatest area in the three-room set.

Maple is the largest of the three rooms.

3 Pine and Maple both measure 35 dB. Express equality.

Pine is as quiet as Maple.

4 Pine has 30 m²; Cedar has 42 m². Use not as...as.

Pine is not as large as Cedar.

5 Cedar costs $15 more per hour than Pine. State the exact degree.

Cedar is $15 more expensive per hour than Pine.

6 Two rooms share the lowest price. Include Pine without claiming it is unique.

Pine is one of the cheapest rooms in the building.

Play and practice

Games and a short reading that recycle this lesson. Use them as a warm-up, a fast finisher, or homework. Each one checks itself.

Read

Which gym is best for us?

Read once for meaning. Then read again and do the tasks below.

Message to a coworker121 wordsAbout 1 min

Hi Sam, I visited three gyms near the office this week. FitZone is the cheapest of the three. It costs $25 a month, but it is also the smallest, and it gets very busy after work.

City Gym is bigger than FitZone, and the machines are newer. It costs $40, so it is not as cheap as FitZone. It also has a pool, and the showers are cleaner.

Harbor Sports is the farthest from the office. It takes twenty minutes on foot. Its classes are good, but the classes at City Gym are better. Harbor Sports costs $45, so it is the worst choice for our budget. I think City Gym is the best option for us. Do you agree? Lena

Find it

Tap the 9 one-word comparative and superlative forms (like taller or tallest). Skip as cheap as.

Check your understanding

1. Which gym is the cheapest?

2. What is one problem with FitZone?

3. Which gym does Lena recommend?

Crossword

Comparative and superlative forms

Click a clue or a square, then type. Press Check when you finish.

Across

Down

Memory

Superlative memory

Flip two cards. If they belong together, they stay. Find every pair in as few turns as you can.

Sort it

-er / -est or more / most?

How does each adjective usually make its comparative and superlative? Tap it, then tap its box.

You never need to disclose your real home, work, school, location, commute, purchases, finances, family, relationships, body, health, preferences, or living conditions. Use the fictional room data, invent neutral options, or share personal information only when you freely choose.

Establish the evidence: Compare all three rooms on area, price, noise, and capacity. Include one exact difference and one as...as statement.

Define the set: Make three superlative claims, name the comparison set, and identify any claim that would change if a fourth room entered the list.

Change the client: Recommend a room for a 20-person class with a $45 limit, then for a 35-person reception with no price limit. Explain why the best match changes with the criteria.

Final production: give a 45–60 second room recommendation. State the fictional client’s capacity, budget, and noise needs; use two comparatives, one measured difference, one equality or unequal-degree frame, and one superlative with a defined set; then justify one defensible recommendation from the table.

Final check

Eight decisions from three training rooms

1. Room A has 32 m²; Room B has 45 m². Room B is ___.

2. Noise values are A 40 dB, B 35 dB, and C 28 dB. Room C is ___.

3. Rooms A and C both cost $50 per hour. Room A is ___ Room C.

4. Which spelling correctly compares big?

5. Room B has a projector; Room A does not. For this presentation, B is ___.

6. Which noun phrase correctly uses a possessive?

7. Room B costs $52 and A costs $50 per hour. B is ___ A.

8. A client needs 30 chairs for under $60. A has 24 chairs at $50; B has 34 at $55; C has 40 at $70. Why is B the best match?

Reflect and plan the next use

Can you defend the comparison?

Explain the scale, reference, and set in Cedar is quieter than Maple and Cedar is the quietest of the three rooms. Then explain why one of the cheapest allows a tie and why our largest room has no the.

Choose your next use: repeat the room recommendation with fewer notes, create a new three-option table, or complete the retrieval below tomorrow.

Return tomorrow before rereading. Complete the five-minute next-day retrieval, then revisit only the scale, set, form, spelling, equality, degree, or article pattern that still feels slow.

Next-day retrieval

Choose from memory before looking back

1Cedar measures 30 dB and Maple 35 dB: Cedar is Maple.

2Maple has the greatest area in the complete three-room list: It is .