Not necessarily. One exception is where the word without "ed" is already longer than two syllables and others are cases where the "ed" isn't separately pronounced, like with "determined" or "ravaged."
I've always been taught and led to believe that the word peddler is a two-syllable word.
Two: Al-Ways
The two syllables in the word "bugle" are "bug" and "le."
Yes, always is two syllables.
The word leasehold has two syllables. The syllables in the word are lease-hold.
there are two syllables in the word grueling
Their are two syllables in the word silly.
The word make has one syllable.
The word "always" comprises two sounds: /ɔː/ and /weɪ/, making a total of two syllables.
The word lady has two syllables. The syllables of the word are la-dy.
the word people has two syllables the word people has two syllables
There are two syllables in the word 'glaciers'.