adding S
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Verbs ending with "s", "ch", "sh", "x" or "z"
When a verb ends with s, ch, sh, x or z, we add the letter e, and then we add the letter s.
In the following examples the part before the letter s is in purple and the letters es are in red.
miss => miss + es => misses kiss => kiss + es => kisses watch => watch + es => watches teach => teach + es => teaches wash => wash + es => washes push => push + es => pushes mix => mix + es => mixes fix => fix + es => fixes buzz => buzz + es => buzzes
In the following examples the part before the letter s is in purple and the letters es are in red.
| miss | => | miss + es | => | misses |
| kiss | => | kiss + es | => | kisses |
| watch | => | watch + es | => | watches |
| teach | => | teach + es | => | teaches |
| wash | => | wash + es | => | washes |
| push | => | push + es | => | pushes |
| mix | => | mix + es | => | mixes |
| fix | => | fix + es | => | fixes |
| buzz | => | buzz + es | => | buzzes |
Verbs ending with "o"
When a verb ends with o, we add the letter e, and then we add the letter s.
In the following examples the letter o is in purple and the letters es are in red.
go => go + es => goes do => do + es => does
In the following examples the letter o is in purple and the letters es are in red.
| go | => | go + es | => | goes |
| do | => | do + es | => | does |
Verbs ending with "y"
When a verb ends with y and there is a consonant before it, the y changes into ie. Then the letter s is added.
In the following examples the consonant is in blue, the part before the letter s is in green, and the letter s is in red.
fly => flie + s => flies try => trie + s => tries cry => crie + s => cries study => studie + s => studies
When a verb ends with y, and there is a vowel before it, we simply add the letter s to the verb.
In the following examples the vowel is in orange, the part before the letter sis in green, and the letter s is in red.
buy => buy + s => buys say => say + s => says pay => pay + s => pays play => play + s => plays enjoy => enjoy + s => enjoys
So these were the spelling rules for adding "s" in the Simple Present.Got it? Good! Let's practice it…
For spelling rules on other subject visit the Spelling Rules page.
external source:
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source: 
Spelling the - S Form
English verbs have five basic forms: the base form, the - S form,
the - ing form, the past form, and the past participle form.
The - S form is very commonly used for main verbs and auxiliary
verbs in the simple present tense when the subject is or means
he, she, or it. The - S form is also very commonly used as a full
(has) or contracted ('s) auxiliary verb in the present perfect tense
when the subject is or means he, she, or it.
For be, the - S form is is. For have, it is has. For other verbs,
there are three different spellings: - s, - es, and - ies:
1. Add - s to the base form.
This is the most common spelling for the -S form and
is the spelling used for most verbs.
Notice, especially, that - s is added when the base form
ends in one or more consonants + e:
aches, bakes, breathes, cares, caches, dives,
edges, fiddles, files, glares, hates, hopes, jokes,
lives, makes, notes, pastes, races, spares, surprises,
tastes, types, writes
Notice that - s is also added when the base form ends
in one or more consonants (but without e):
adds, bets, beats, calls, claps, cheats, cleans, digs,
drops, eats, fills, finds, fits, gets, grabs, hops, kills,
knits, links, lists, means, needs, opens, puts, quits,
robs, rings, rips, sends, stops, tells, trusts, voids,
wants, works, zips
In addition, notice this spelling is used with the small
number of verbs ending in two vowels (including - ie):
agrees, argues, boos, coos, flees, glues, moos,
sees, shoos, shoes, tees, woos
dies, lies, ties, vies
2. Add - es to the base form.
This happens in two situations:
a. when the base form ends in the vowel o:
does, goes, soloes
b. when the base form ends in ss, sh,
(t)ch, zz, and x:
assesses, blesses, caresses, fusses,
kisses, misses, passes, tosses;
blushes, dashes, flashes, gnashes,
hushes, lashes, mashes, pushes, rushes,
splashes, stashes, washes, wishes;
catches, ditches, etches, flinches,
hitches, itches, marches, mooches,
patches, reaches, searches,
scratches, teaches, touches, watches;
buzzes, fizzes;
boxes, coaxes, faxes, fixes,
relaxes, vexes, waxes.
3. Change y to i and add - es.
This happens when a verb ends in a consonant + y:
apply / applies; bury / buries;
carry / carries; copy / copies; cry / cries;
dry / dries; fly / flies; fry / fries;
hurry / hurries; marry / marries; pity / pities;
ply / plies; pry / pries; tidy / tidies; try / tries;
worry / worries.
Verbs that end in a vowel + y do not change the y
to i and then add - es, however:
buy / buys; employs / employs; enjoy / enjoys;
flay / flays; lay / lays; pay / pays; play / plays;
say / says; slay / slays; spray / sprays; stay / stays;
sway / sways;
Important:
Compare flay / flays, play / plays, and pray / prays
with fly / flies, ply / plies, and pry / pries to see
how these spelling rules work for verbs ending in s.
source:
In the following examples the consonant is in blue, the part before the letter s is in green, and the letter s is in red.
| fly | => | flie + s | => | flies |
| try | => | trie + s | => | tries |
| cry | => | crie + s | => | cries |
| study | => | studie + s | => | studies |
When a verb ends with y, and there is a vowel before it, we simply add the letter s to the verb.
In the following examples the vowel is in orange, the part before the letter sis in green, and the letter s is in red.
| buy | => | buy + s | => | buys |
| say | => | say + s | => | says |
| pay | => | pay + s | => | pays |
| play | => | play + s | => | plays |
| enjoy | => | enjoy + s | => | enjoys |
So these were the spelling rules for adding "s" in the Simple Present.
Got it? Good! Let's practice it…
For spelling rules on other subject visit the Spelling Rules page.
source:
English verbs have five basic forms: the base form, the - S form, The - S form is very commonly used for main verbs and auxiliary For be, the - S form is is. For have, it is has. For other verbs,
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Next activities 
Grammar Rules:
See our notes about the Simple Present Tense in English.
Pronunciation Rules:
You might be interested in the Pronunciation of -S at the end of words in English.
Grammar Rules: Pronunciation Rules: |
GOTYE - Somebody That I Used To Know (feat. Kimbra) [Legendado]
Now and then I think of when we were together
PRESENT SIMPLE
following the example:
catch = he catches
to catch =come
run
cook
smoke
drink
stand
fetch
start
fix
touch
live
watch
miss
wish
rush
write
buy
carry
copy
enjoy
fry
marry
play
study
try