Though there is no official written alphabet of Parseltongue
as it is a verbal language only, there are several distinct sounds that may be
considered the “alphabet” of the language. These sounds include the English
letters “S”, “H”, “N”, “J”, “K”, “L”, “R”, “T”, “Y”, “Z” and all vowels except
“O”.

There are 20 vowel sounds, and 27 consonant sounds, making a total of 47 letters in total in the Parseltongue alphabet.

“Vowels” in Parseltongue: (Sounds that end with
an open mouth; soft sounds)

Ssa

Ssu

Ssie (pronounced sigh)

Ssii (pronounced see)

Sse (pronounced say)

Sha

Shu

Shie (pronounced shy)

Shii (pronounced she)

She (pronounced shey)

Hsa

Hsu

Hsie (pronounced h-sigh)

Hsii (pronounced h-see)

Hse (pronounced h-say)

Hha

Hhu

Hhie (pronounced high)

Hhii (pronounced he)

Hhe (pronounced hay)

“Consonants” in Parseltongue: (Sounds that end with an closed mouth; hard sounds)

Sss

Sst

Ssn

Ssj

Ssk

Ssl

Ssr

Ssz

Ssh

Hss

Hst

Hsn

Hsj

Hsk

Hsl

Hsr

Hsz

Hsh

Sht

Shn

Shl

Shr

Shz

Shh

Shj

Shk

Shs

Often the most difficult of these to pronounce for humans is the “J”
and “Z” sound in conjunction with an "Hs" or "Sh" sound, and therefore much of
Western Parseltongue has moved away from the use of these letters. However,
they are still recognized as letters in the alphabet.

The most practical way to practice speaking the alphabet of
Parseltongue as a human is to remember the structure of a snake’s mouth. Their
lips are not made to form words as ours are, and so when speaking the language
it can be helpful to imagine that there is a straight rod running from the
front of the lips to the back of the throat on both the roof and bottom of your
mouth. Also avoid moving the lips as much as possible, as snakes do not have
this capability, either.