The Three Sounds of the Suffix -ed

The three sounds of the suffix -ed are /t/, /d/, and /ed/.

The suffix -ed makes the /t/ sound when it follows voiceless consonants, such as in 'hatched', 'huffed', and 'hissed'.

The suffix -ed makes the /d/ sound when it follows voiced consonants or vowels, such as in 'hummed'.

The suffix -ed makes the /ed/ sound when it follows a verb that ends in /t/ or /d/, such as in 'sounded'.

An example is 'huffed'.

An example is 'hummed'.

An example is 'sounded'.

The sound of -ed is determined by whether the preceding consonant is voiced or voiceless.

A voiced consonant is a consonant sound produced with vibration of the vocal cords, such as /b/, /d/, /g/, /v/, /z/, and /m/.

A voiceless consonant is a consonant sound produced without vibration of the vocal cords, such as /p/, /t/, /k/, /s/, and /f/.