The comparative is for two things: faster, happier, more careful.
The superlative is for three or more: fastest, happiest, most careful.
Quick Tips :
Short words → usually -er / -est Ends with -y → change to -i + -er/-est Ends with -e → just -r / -st Some short words → double the last letter, as in big, bigger, biggest Long words → use more / most Some special words → just remember them: good, better, best
1. The “Standard” Group (Just add -er and -est)
No.
Positive
Comparative
Superlative
1
fast
faster
fastest
2
slow
slower
slowest
3
small
smaller
smallest
4
tall
taller
tallest
5
short
shorter
shortest
6
high
higher
highest
7
low
lower
lowest
8
long
longer
longest
9
old
older
oldest
10
young
younger
youngest
11
cheap
cheaper
cheapest
12
deep
deeper
deepest
13
hard
harder
hardest
14
soft
softer
softest
15
kind
kinder
kindest
16
loud
louder
loudest
17
near
nearer
nearest
18
poor
poorer
poorest
19
rich
richer
richest
20
strong
stronger
strongest
21
weak
weaker
weakest
22
sweet
sweeter
sweetest
23
thick
thicker
thickest
24
clean
cleaner
cleanest
25
cold
colder
coldest
2. The “Y to I” Group (Change -y to -i, then add -er / -est)
No.
Positive
Comparative
Superlative
26
happy
happier
happiest
27
heavy
heavier
heaviest
28
easy
easier
easiest
29
sunny
sunnier
sunniest
30
funny
funnier
funniest
31
busy
busier
busiest
32
dirty
dirtier
dirtiest
33
dry
drier
driest
34
early
earlier
earliest
35
friendly
friendlier
friendliest
36
greedy
greedier
greediest
37
healthy
healthier
healthiest
38
hungry
hungrier
hungriest
39
lazy
lazier
laziest
40
lucky
luckier
luckiest
41
pretty
prettier
prettiest
42
silly
sillier
silliest
43
tasty
tastier
tastiest
44
tiny
tinier
tiniest
45
ugly
uglier
ugliest
3. The “Double Up” Group (Double the last letter + -er / -est)
No.
Positive
Comparative
Superlative
46
big
bigger
biggest
47
sad
sadder
saddest
48
hot
hotter
hottest
49
fat
fatter
fattest
50
thin
thinner
thinnest
51
fit
fitter
fittest
52
wet
wetter
wettest
53
dim
dimmer
dimmest
54
mad
madder
maddest
55
slim
slimmer
slimmest
4. The “E” Group (Already ends in -e, just add -r / -st)
No.
Positive
Comparative
Superlative
56
large
larger
largest
57
nice
nicer
nicest
58
late
later
latest
59
brave
braver
bravest
60
close
closer
closest
61
fine
finer
finest
62
safe
safer
safest
63
simple
simpler
simplest
64
strange
stranger
strangest
65
wide
wider
widest
66
wise
wiser
wisest
67
cute
cuter
cutest
68
pure
purer
purest
69
pale
paler
palest
70
tame
tamer
tamest
5. The “Helper” Group (Longer words use more / most)
No.
Positive
Comparative
Superlative
71
beautiful
more beautiful
most beautiful
72
expensive
more expensive
most expensive
73
intelligent
more intelligent
most intelligent
74
difficult
more difficult
most difficult
75
careful
more careful
most careful
76
famous
more famous
most famous
77
helpful
more helpful
most helpful
78
important
more important
most important
79
popular
more popular
most popular
80
dangerous
more dangerous
most dangerous
81
patient
more patient
most patient
82
generous
more generous
most generous
83
creative
more creative
most creative
84
active
more active
most active
85
curious
more curious
most curious
86
excited
more excited
most excited
87
modern
more modern
most modern
88
nervous
more nervous
most nervous
89
serious
more serious
most serious
90
useful
more useful
most useful
6. The “Irregular” Group (Total word changes – no pattern)