American English Pronunciation Rules

A comprehensive guide to sound changes in American English.


Sounds That Change

The sound is still there, just different. This is the biggest group — the story of how T transforms in American English, plus other sound changes.

Flap T/D

When T or D sounds like a quick tap

What is it?

In American English, T and D often become a quick flap sound [ɾ] — like a very fast D, or the "tt" in Spanish "gato".

butter /bʌtər/ [bʌɾər]

This is why "butter" and "budder" sound the same, and "writer" and "rider" are nearly identical.

When does it happen?

Flapping occurs when T or D is:

**Key:** The following syllable must be *unstressed*. That's why "atomic" keeps its T (stress on second syllable), but "atom" flaps it.

Examples

T between vowels

butter · water · better · letter · later · matter · city · pretty

T after R

party · forty · thirty · dirty · quarter

T before syllabic L

little · bottle · battle · settle · metal

D also flaps

ladder · lady · ready · body · study · nobody

Homophones

Because of flapping, these word pairs sound identical:

With T With D
writer rider
latter ladder
metal medal
batting badding
bitter bidder

Exceptions

Cross-word flapping

Flapping also happens between words in connected speech. When a word ends in T and the next word starts with a vowel, they link together with a flap.

lot of /lɑt ʌv/ [lɑɾə]

Common phrases

but I · what I · get out · put it · about it · lot of
**Note:** Punctuation blocks flapping. Compare "but I" [bʌɾaɪ] vs "but, I" [bʌt aɪ].

Glottal Stop + Syllabic N

When T becomes a catch in your throat

What is it?

In words like button and kitten, the T becomes a glottal stop [ʔ] — a brief catch in your throat, like the sound in "uh-oh".

button /bʌtən/ [bʌʔn̩]

The schwa vowel is also dropped, making the N syllabic — it forms its own syllable without a vowel.

When does it happen?

This pattern occurs when:

**Note:** This is different from [flapping](/rules/flapping/). After N, T becomes a glottal stop, not a flap. Compare: "butter" [bʌɾər] vs "button" [bʌʔn̩].

Examples

Common -ton/-ten words

button · kitten · cotton · mitten · written · bitten · rotten · gotten

Longer words

forgotten · Manhattan · Britain · mountain · fountain · certain · curtain

How to pronounce it

  1. Say the first part of the word normally ("but-")
  2. Stop your airflow briefly in your throat (like holding your breath)
  3. Release directly into N — no vowel between the glottal stop and N
**Practice:** Try saying "uh-oh" — the break between "uh" and "oh" is a glottal stop. Now use that same throat catch in "but-[ʔ]-n".

Related rules


Glottal T (Word-Final)

When T becomes a glottal stop before consonants

What is it?

When a word ends in T (not in a cluster), it often becomes a glottal stop [ʔ] before a consonant. A glottal stop is made by briefly closing your throat.

that boy /ðæt bɔɪ/ [ðæʔ bɔɪ]
what time /wʌt taɪm/ [wʌʔ taɪm]

When does it happen?

Glottal T occurs when:

**Note:** Before vowels, T usually becomes a flap [ɾ] instead (see Flap T/D rule).

Examples

Phrase Standard Spoken
that boy ðæt bɔɪ ðæʔ bɔɪ
what time wʌt taɪm wʌʔ taɪm
get back ɡɛt bæk ɡɛʔ bæk

Exceptions

Related rules


Palatalization

When "got you" becomes "gotcha"

What is it?

When T or D meets the Y sound in "you/your/yet", they merge into a new sound:

got you /ɡɑt ju/ [ɡɑʧu]
did you /dɪd ju/ [dɪʤu]

When does it happen?

Palatalization occurs when:

**Note:** This creates familiar casual spellings like **gotcha**, **didja**, **whatcha**, **wouldja**.

Examples

T + Y → CH [ʧ]

Phrase Standard Spoken
got you ɡɑt ju ɡɑʧu
what you wʌt ju wʌʧu
let you lɛt ju lɛʧu
meet you mit ju miʧu

D + Y → J [ʤ]

Phrase Standard Spoken
did you dɪd ju dɪʤu
would you wʊd ju wʊʤu
could you kʊd ju kʊʤu

Optional: S/Z + Y (fast speech only)

In very fast, casual speech, S and Z can also merge with Y. This is less common and more subtle than T/D palatalization.

**Note:** These are optional. Many speakers keep S/Z and Y separate even in casual speech.

S + Y → SH [ʃ] (optional)

Phrase Standard Spoken
this year ðɪs jɪr ðɪʃ ɪr
miss you mɪs ju mɪʃ u

Z + Y → ZH [ʒ] (optional)

Phrase Standard Spoken
those years ðoʊz jɪrz ðoʊʒ ɪrz
as you æz ju æʒ u
was your wʌz jʊr wʌʒ ʊr
is your ɪz jʊr ɪʒ ʊr
has your hæz jʊr hæʒ ʊr

Exceptions

Related rules


-ING Reduction

When -ing becomes -in'

What is it?

In casual American English, the -ing ending is often pronounced as -in [ɪn] instead of [ɪŋ]. The "g" sound drops and the nasal changes from velar (back of mouth) to alveolar (front).

going /ɡoʊɪŋ/ [ɡoʊɪn]

This is sometimes written as goin' or runnin' in informal writing.

When does it happen?

-ING reduction is common in:

**Note:** This is a casual/informal pronunciation. In formal speech, job interviews, or presentations, speakers typically use the full [ɪŋ] sound.

Examples

Common verbs

going · running · coming · doing · playing · talking · working · thinking

Common phrases

What are you doin'? · I'm just sayin' · Keep on movin' · Nothing's happenin'

Important distinction

Don't confuse -ing words with words that end in -ing as part of the root:

Related rules


TH to N Assimilation

When "in the" becomes "in-nuh"

What is it?

When "the" follows a word ending in /n/, the TH sound often assimilates (changes) to match the N, becoming another [n] sound.

in the /ɪn ðə/ [ɪn nə]

This creates a smooth double-N sound: "in the" → "in-nuh".

When does it happen?

TH-to-N assimilation occurs when:

**Note:** This makes speech flow more smoothly — the tongue doesn't have to move between N and TH positions.

Examples

Phrase Standard Spoken
in the ɪn ðə ɪn nə
on the ɑn ðə ɑn nə
when the wɛn ðə wɛn nə

Exceptions

Related rules


Sounds That Disappear

More dramatic — the sound is just gone. From specific words like "of" and "them" to general patterns like schwa deletion.

V Elision in "of"

When "of" loses its V sound

What is it?

In connected speech, the word "of" often reduces from /ʌv/ or /əv/ to just /ə/, completely dropping the /v/ sound. This is one of the most common reductions in English.

kind of /kaɪnd ʌv/ [kaɪndə]

This is why "kind of" sounds like "kinda" and "sort of" sounds like "sorta".

When does it happen?

V elision in "of" occurs:

**Note:** When the preceding word ends in T or D, you often get **both** V elision AND [cross-word flapping](/rules/flapping/). That's why "lot of" becomes [lɑɾə] and "sort of" becomes [sɔrɾə].

Examples

Common phrases

kind of → kinda · sort of → sorta · lot of → lotta · out of → outta · because of · instead of

With cross-word flapping

When the word before "of" ends in T or D, you get flapping too:

Phrase Phonemic Phonetic Spelled
sort of /sɔrt ʌv/ [sɔrɾə] sorta
lot of /lɑt ʌv/ [lɑɾə] lotta
out of /aʊt ʌv/ [aʊɾə] outta

Exceptions

Informal spellings

These reductions are often written informally:

Related rules


H-Dropping

When H disappears in pronouns

What is it?

In connected speech, the /h/ sound is often dropped from unstressed pronouns and auxiliaries: him, her, his, he, has, have, had.

tell him /tɛl hɪm/ [tɛl ɪm]

This is why "tell him" sounds like "tell im" and "give her" sounds like "give er".

When does it happen?

H-dropping occurs when:

**Note:** This only applies to function words (him, her, his, he, has, have, had). Content words like "house" or "happy" always keep their /h/.

Examples

Pronouns: him, her, his, he

Phrase Phonemic Phonetic
tell him /tɛl hɪm/ [tɛl ɪm]
give her /ɡɪv hɜr/ [ɡɪv ɚ]
did he /dɪd hi/ [dɪd i]
in his /ɪn hɪz/ [ɪn ɪz]

Auxiliaries: have, has, had

Phrase Phonemic Phonetic
I have /aɪ hæv/ [aɪ əv]
could have /kʊd hæv/ [kʊd əv]

Exceptions

Related rules


TH-Dropping in "them"

When "them" becomes "'em"

What is it?

In casual speech, "them" loses its /ð/ sound and becomes "'em" [əm]. This is extremely common in everyday conversation.

tell them /tɛl ðɛm/ [tɛl əm]

This is why "tell them" sounds like "tell 'em" and "give them" sounds like "give 'em".

When does it happen?

TH-dropping in "them" occurs when:

**Note:** Often written as **'em** in informal writing: "Tell 'em I said hi!"

Examples

Phrase Phonemic Phonetic
tell them /tɛl ðɛm/ [tɛl əm]
give them /ɡɪv ðɛm/ [ɡɪv əm]
ask them /æsk ðɛm/ [æsk əm]
get them /ɡɛt ðɛm/ [ɡɛɾ əm]
let them /lɛt ðɛm/ [lɛɾ əm]
**Notice:** In "get them" and "let them", you also get [flapping](/rules/flapping/)! Once the TH is deleted, the T is now before a vowel, so it becomes a flap [ɾ].

Exceptions

Related rules


Final T/D Elision

When T or D drops in consonant clusters

What is it?

When T or D is part of a consonant cluster (like -st, -nd, -ld) at the end of a word, it often drops completely before a word starting with a consonant.

just say /dʒʌst seɪ/ [dʒʌs seɪ]
old man /oʊld mæn/ [oʊl mæn]

When does it happen?

T/D elision occurs when:

**Note:** This is different from glottal T. Here the sound is deleted entirely, not replaced.

Examples

Phrase Standard Spoken
just say dʒʌst seɪ dʒʌs seɪ
old man oʊld mæn oʊl mæn
and then ænd ðɛn æn ðɛn

Exceptions

Related rules


NT Cluster Reduction

When T disappears after N

What is it?

In fast, connected American English speech, when T appears after N and before an unstressed vowel, the T is often dropped entirely. You just hear the N sound.

twenty /twɛnti/ [twɛni]

This makes "twenty" sound like "twenny" and "internet" sound like "innernet".

When does it happen?

NT reduction occurs in casual, fast speech when:

**Note:** Words like "contain" [kənteɪn] keep the T because the following vowel is **stressed**.

Examples

Numbers

twenty · seventy · ninety

Common words

internet · interview · international · intermediate · center · enter · printer · santa

-nt- in the middle

plenty · county · mountain · fountain

Exceptions

Related rules


Schwa Deletion

When unstressed vowels disappear

What is it?

In natural speech, unstressed schwa vowels [ə] are often dropped entirely, reducing the number of syllables in a word.

comfortable /kʌmfərtəbəl/ [kʌmftərbl̩]

"Comfortable" (4 syllables) becomes "comf-ter-bl" (3 syllables) in casual speech.

When does it happen?

Schwa deletion is common when:

**Key:** This makes English words shorter than their spelling suggests. "chocolate" is 2 syllables [ˈtʃɔklət], not 3.

Examples

Common reductions

Word Spelled syllables Spoken syllables
comfortable com-for-ta-ble (4) comf-ter-bl (3)
chocolate choc-o-late (3) choc-lit (2)
family fam-i-ly (3) fam-ly (2)
vegetable veg-e-ta-ble (4) vej-tə-bl (3)
camera cam-e-ra (3) cam-ra (2)

More examples

different · temperature · restaurant · interesting · evening · aspirin

Related rules


Sounds That Merge or Appear

Dealing with boundaries between words — sounds merge together or new linking sounds appear.

Consonant Gemination

When identical consonants meet at word boundaries

What is it?

When a word ends with the same consonant that the next word begins with, speakers don't pronounce the sound twice. Instead, the consonants merge — but how they merge depends on the type of consonant.

some money /sʌm mʌni/ [sʌ mʌni]

This is why "some money" sounds like "suh money" — the two /m/ sounds become one longer /m/.

Three types of consonants

1. Continuous consonants — Lengthening

Fricatives (/f, v, θ, ð, s, z, ʃ, ʒ/), nasals (/m, n, ŋ/), and liquids (/l, r/) can be held continuously. When they meet, the sound is lengthened — pronounced once, but for a longer time.

Phrase Phonemic Phonetic
some money /sʌm mʌni/ [sʌːmʌni]
bus stop /bʌs stɑp/ [bʌːstɑp]
phone number /foʊn nʌmbɚ/ [foʊːnʌmbɚ]
more rice /mɔr raɪs/ [mɔːraɪs]

2. Stops — Hold and release

Stops (/p, b, t, d, k, g/) cannot be held continuously because they completely block airflow. When they meet, the first stop is held, then released into the second. This creates a brief pause.

Phrase How to say it
bad day Hold /d/, release into /d/
black cat Hold /k/, release into /k/
big game Hold /g/, release into /g/

3. Affricates — Pronounced twice

Affricates (/ʧ, ʤ/) are pronounced twice without merging.

Phrase Phonetic
orange juice [ɔrənʤ ʤus]
beach chair [biʧ ʧɛr]

Related rules


Glide Insertion

When [w] or [j] links words together

What is it?

When a word ending in a vowel is followed by a word starting with a vowel, English speakers naturally insert a glide sound to link them:

go out /ɡoʊ aʊt/ [ɡoʊw‿aʊt]
see it /siː ɪt/ [siːj‿ɪt]

When does it happen?

Glide insertion occurs when:

**Note:** This is automatic and unconscious for native speakers — they don't think about inserting these sounds.

Examples

[w] after rounded vowels

Phrase Standard Spoken
go out ɡoʊ aʊt ɡoʊw‿aʊt
do it duː ɪt duːw‿ɪt

[j] after front vowels

Phrase Standard Spoken
see it siː ɪt siːj‿ɪt
say it seɪ ɪt seɪj‿ɪt

Exceptions

Related rules


Syllable Structure

How English handles unstressed syllables — consonants forming their own syllables.

Syllabic N

When N forms its own syllable

What is it?

In casual American English, when -en or -on follows certain consonants, the schwa vowel is dropped and N becomes syllabic [n̩] — it forms its own syllable without a vowel before it.

garden /ɡɑrdən/ [ɡɑrdn̩]

The small line under the N [n̩] indicates it's syllabic.

When does it happen?

Syllabic N commonly occurs after:

**Key:** The preceding consonant and the N blend together without a distinct vowel sound between them.

Examples

After D

garden · sudden · hidden · wooden · burden

After S/Z

reason · season · prison · listen · lesson

After T (with glottal stop)

button · kitten · cotton · written

See Glottal Stop + Syllabic N for more on the T + syllabic N pattern.

Related rules


Syllabic L

When L forms its own syllable

What is it?

In words ending with -le or -al, the schwa vowel is often dropped and L becomes syllabic [l̩] — it forms its own syllable without a vowel before it.

bottle /bɑtəl/ [bɑɾl̩]

The small line under the L [l̩] indicates it's syllabic. Note that the T also becomes a flap in this word.

When does it happen?

Syllabic L occurs in words ending with:

Examples

-tle words

bottle · little · battle · settle · kettle · cattle

-dle words

middle · puddle · handle · candle · needle

-ble/-ple words

table · able · apple · simple · people · trouble

Related rules