Potential form for godan verb: register's/dialectical differences?


According to all standard book and webpage I consulted, godan verb's potential
form are produced by first changing to え (e) form, and then add in る (ru).

But a native Japanese speaker (who is also fluent in English) told me that
what needed to be added should be られる (rareru) rather than just る (ru), and
added that "youth these day" keep dropping sounds from words. Its
applicability to godan verb was specifically mentioned with specific example,
so there was not a confusion with ichidan verb. It is also mentioned that this
apply to both positive and negative potential too. I asked around, and it
seems like colloquially the ら (ra) often get dropped in casual conversation.
However, I cannot find anyway for the れ (re) to be dropped. It seems rude to
go back and query further on the question, especially since it would sound
like I am accusing that person of not knowing their own language.

So I would like to ask, if anyone know possible register's or dialectical
differences, be it between different region, or between generation, or between
texting and talking, or whatever, that would require to add られる (rareru)
instead of just る (ru) for the potential form for godan verb? Thank you.




Ichidan verbs add られる but young people add れる instead, perhaps to disambiguate
between it and the passive, which also ends in られる (one of the only
conjugation collisions of Japanese!). So standard Japanese: 食べられる, some
colloquial speakers say 食べれる (食べられる meaning "to be eaten" is never
contracted). This can be thought of adding られ or れ to the stem; don't think of
the る as it is simply the present tense ending. The native speaker you are
talking to may be confusing 五段 with 一段, which after all is easy to forget as
_native_ speakers don't really need to keep grammar terms in order to speak!

This has nothing to do with godan verbs, which really form the potential in
typical Japanese recursive fashion, shifting the vowel and then using it as an
ichidan verb (会う aw- => 会える a(w)e-). So 書く always becomes 書ける, 読む 読める, etc.




Ichidan verbs add られる but young people add れる instead, perhaps to disambiguate
between it and the passive, which also ends in られる (one of the only
conjugation collisions of Japanese!). So standard Japanese: 食べられる, some
colloquial speakers say 食べれる (食べられる meaning "to be eaten" is never
contracted). This can be thought of adding られ or れ to the stem; don't think of
the る as it is simply the present tense ending. The native speaker you are
talking to may be confusing 五段 with 一段, which after all is easy to forget as
_native_ speakers don't really need to keep grammar terms in order to speak!

This has nothing to do with godan verbs, which really form the potential in
typical Japanese recursive fashion, shifting the vowel and then using it as an
ichidan verb (会う aw- => 会える a(w)e-). So 書く always becomes 書ける, 読む 読める, etc.

