Page 250 - 작업중 파일

Words 十 -s and -es (birds/watches etc.)

noun + s (plural) （➔ Unit 66)

bird _나i rds mistake ➔ mistakes hotel ―➔ hotels

verb + s (he/she/it -s) （➔ Unit 5)

l
i
think ➔ hinks live ➔ ves remember ~ remembers
t

but

+ es after -s / -sh / -ch / -x

bus ➔ buses pass ~ passes address ~ add「esses

dish ―➔ dishes wash ―➔ washes fi nish — nishes
fi
watch ➔ watches teach ―➔ teach es sandwich ―➔ sandwiches

box ➔ boxes

also

potato ➔ potatoes tomato ➔ tomatoes

do ➔ does go ➔ goes

-f I -fe ➔ -ves

shelf ―➔ shelves knife ➔ knives but roof ―➔ roofs

- Words ending in -y (baby ➔ babies / study 玉tudied etc.)

-y ➔ -1es

study ➔ studies (not studys) fam ily ➔ fami lies (not fami lys)
. . .
story ➔ stones c ity ➔ 1ties baby ➔ babies
c
. .
try ➔ tnes marry ➔ marnes fiy ➔ Aies

-y ➔ -ied 曰 Unit 11 )

study ➔ studied (not studyed)

try ➔ tried marry ➔ married copy ~ copied

-y ➔ -ier/-iest (➔ Units 87, 90)
easy ➔ easier/easiest (not easyer/easyest)

happy ➔ happier/happiest I ucky ➔ luckier/I uckiest

➔
y
heavv ➔ heavi ier/heaviest funny ➔ funn ier/funniest
eav
heav
-y ➔ -ily 尸 Un it 86)

easy ➔ easily (not easyly)

happy ➔ happily heavy ➔ heavily lucky ➔ luckily

y does not change to i if the ending is -ay/-ey/-oy/-uy:

holiday ➔ holidays (not holidaies)

st
enjoy ➔ enjoys/enjoyed stay ➔ ays/stayed buy ➔ buys key ➔ keys

but

say ~ said pay ~ paid (irregu la r ve rbs)

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