How to Pronounce -ed

How to Pronounce -ed in English
The past simple tense and past participle of all regular verbs end in -ed. For example:
base verb (v1)
past simple (v2)
past participle (v3)

work
worked
worked

In addition, many adjectives are made from the past participle and so end in -ed. For example:
I like painted furniture.
The question is: How do we pronounce the -ed?
The answer is: In 3 ways - / Id/ or / t/ or / d/
If the base verb ends in one of these sounds:
example base verb*:
example with -ed:
pronounce the -ed:
extra syllable?

unvoiced
/t/
want
wanted
/ Id/
yes

voiced
/d/
end
ended



unvoiced
/p/
hope
hoped
/ t/
no


/f/
laugh
laughed




/s/
fax
faxed




/S/
wash
washed




/tS/
watch
watched




/k/
like
liked



voiced
all other sounds, for example...
play
played
/ d/




allow
allowed





beg
begged



* note that it is the sound that is important, not the letter or spelling. For example, "fax" ends in the letter "x" but the sound /s/; "like" ends in the letter "e" but the sound /k/.
Exceptions
The following -ed words used as adjectives are pronounced with /Id/:
aged
blessed
crooked
dogged
learned
naked
ragged
wicked
wretched