I was wondering, what does the よう form of ある even mean? Does あろう act as volition of the object being spoken about? For example... if someone says 雨が降るでしょう(であろう）... is it the same as "It WILL rain" in that volition is being applied to the object being spoken about?
I'm not looking for ties to English, it's just a lucky example.
No matter how many times someone tries to explain でしょう to me it doesn't make sense... I've been trying to think of it as "It is my guess that"... but it doesn't work in some cases...
I still figure that there are two options:
The kinda iffy option based in someone telling me that the よう form is comprised of a "guess particle"... "う":
The よう form highlights your guess about the future... so saying 行こう means that you are placing your bets so to speak that "going" is what most probably will eventuate.
The way I think makes more sense:
よう form truly does equate to our "will" and thereby is used in the same sense as "I will go"”行こう" and "it will rain""雨が降るでしょう"