I've encountered でしょう and だろう in form of question which mean "right?". But
what does でしょう and だろう mean without in question form?

someone said that it mean "will"

and my teacher said that verb dictionary form(辞書形) can be "will~" so what is
the difference between あしたあめがふる and あしたあめがふるでしょう
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2021-11-12T13:46:22.827
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2023-05-19T22:04:35.527
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grammar
I've encountered でしょう and だろう in form of question which mean "right?". But what does でしょう and だろう mean without in question form?
I usually use でしょう to mean "I wonder if..." or "It seems likely/possible
that..." This seems [confirmed](https://jisho.org/search/deshou) by jisho.
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2021-11-12T14:32:30.037
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`でしょう` (丁寧) and `だろう` (普通) can be translated as "probably". So 明日、雨が降るでしょう is
translated as _" it will probably rain tomorrow"_. In this sentence the
speaker is almost certain that it will rain tomorrow.

For levels of certainty you could refer to
<http://guidetojapanese.org/learn/grammar/certainty>

**Edit** : about `降っているでしょう`  
Someone pointed out that `降るでしょう` should be used instead of `降っているでしょう`, but I
would like to say that `降っているでしょう` is not quite wrong, however, Japanese
people usually don't use. I have asked my Japanese teacher and this is a
summary of what I have received:

  * 「明日は雨が降るでしょう」：It will rain tomorrow.→シンプル
  * 「明日の18:00ごろには雨が降っているでしょう」：It will be raining around 18:00 (Because the weather news said it will rain from 17:00 to 21:00). →18:00には雨が降っている予定です。

Long story short, try to stick to `降るでしょう` and you are safe ;)
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2021-11-12T19:25:07.667
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2021-11-16T09:24:53.780
2021-11-16T09:24:53.780
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