What is the proper use of だろう, is it "masculine", and how is it different from と思 【おも】う?


Like a lot of other foreign guys, I picked up some of my Japanese from
imitating the women I spoke to. Certain phrases may have made me sound
unwittingly effeminate in the early days when I had less of a grasp on the
nuances.

One of those habits was to use でしょう at the end of sentences, to express
uncertainty, asking confirmation, or wondering aloud.

Later on I was told that it was more masculine to use だろう. Even though that
was years ago, I never really got comfortable with だろう. I'm not sure I'm using
it right, and it feels weird saying it.

First, is だろう really the more masculine form of でしょう? It seems sometimes I do
hear men use でしょう, and women use だろう. Do they mean different things?

Second, are だろ and だろう different?

Lastly, what is the difference between these two statements:

> 何かあったのだろうか。
>
> 何かあったと思う。




_Note: I'm going to try to do this without using technical terminology. If I
start being too technical, let me know and I'm more than willing to revise!_

Okay, let's get a few things out of the way. As you know, there is a scale of
**informal ⇔ formal** in Japanese grammar. It is very similar to the scale of
**impolite ⇔ polite** , but _politeness_ is generally dependent on context.

So what does this mean for だろう and でしょう? Basically, the former is informal,
the latter formal. If that's the only difference, why is だろう often considered
"more masculine"? I would say that it has to do with **what kind of language**
you're using in **what kind of context.** My overbroad generalization of the
situation is represented by this table (where L is the kind of language used
and C is the context):

[code]

                Informal-L  Formal-L
    Informal-C  Masculine   Feminine
    Formal-C    Impolite    Polite
    
[/code]

_[Note: if anybody knows a better way to format a table, please let me know.]_

Culturally and historically speaking, "feminine" speech is generally more
formal (though there are certainly other features), while "masculine" speech
is more informal (consider 俺、僕、私 and where each falls on the scales of
formality and gender). So because だろう is less formal, it may be considered
more masculine; likewise, because でしょう is more formal, it may be considered
more feminine -- but mostly, it's about context. Using でしょう with your teacher
or boss is not feminine. Using it with your friends may be.

So that's the answer to the first part of your question! Now let's move on to
the **third** part. I'll come back to the second in a moment. You ask about
the differences between these two sentences:

>   * 何かあったのだろうか。
>   * 何かあったと思う。
>

They are actually quite different. To answer, however, we'll need to analyze a
third:

>   * 何かあったのだろう。
>

But wait! Aren't ～だろう and ～だろうか the same thing? The answer: **no.** The first
is for confirmation ("Something happened, right?") or conjecture ("Something
probably happened."), while by attaching か it becomes either a question ("Did
something happen?") or wondering ("I wonder if something happened.").

~~～と思う, on the other hand, is simply used to express what one thinks. It
contains conviction: "I think something happened," while ～だろう（か） is much more
uncertain.~~

_[Edit: Derek Schaab pointed out in the comments that this is a less than
satisfactory explanation. Allow me to try again. Here goes...]_

～と思う, on the other hand, offers one's thoughts. When you say ～と思う, you believe
what you are saying; the same is not _necessarily_ true for だろう (though it may
be much of the time). It's difficult to compare to these two because 思う is for
_thoughts_ and だろう is more for _guesses._ ～と思う is always subjective, but
subjectivity isn't an issue with だろう: it can range from completely subjective
to based in solid fact.

Now that we have this out of the way, what is the difference between だろ and
だろう? First of all, だろ is even more informal than だろう. But more importantly, I
do not believe it can be used with か, though I may be wrong.

As for the actual difference in sound, the difference is that だろ is two morae,
and だろう is three. Basically that means that だろ is the same length as みず, but
in だろう, the "o" sound is twice as long, making it as long as みずが. The traits
of short and long vowels in Japanese could be a question in its own right,
however.




_Note: I'm going to try to do this without using technical terminology. If I
start being too technical, let me know and I'm more than willing to revise!_

Okay, let's get a few things out of the way. As you know, there is a scale of
**informal ⇔ formal** in Japanese grammar. It is very similar to the scale of
**impolite ⇔ polite** , but _politeness_ is generally dependent on context.

So what does this mean for だろう and でしょう? Basically, the former is informal,
the latter formal. If that's the only difference, why is だろう often considered
"more masculine"? I would say that it has to do with **what kind of language**
you're using in **what kind of context.** My overbroad generalization of the
situation is represented by this table (where L is the kind of language used
and C is the context):

[code]

                Informal-L  Formal-L
    Informal-C  Masculine   Feminine
    Formal-C    Impolite    Polite
    
[/code]

_[Note: if anybody knows a better way to format a table, please let me know.]_

Culturally and historically speaking, "feminine" speech is generally more
formal (though there are certainly other features), while "masculine" speech
is more informal (consider 俺、僕、私 and where each falls on the scales of
formality and gender). So because だろう is less formal, it may be considered
more masculine; likewise, because でしょう is more formal, it may be considered
more feminine -- but mostly, it's about context. Using でしょう with your teacher
or boss is not feminine. Using it with your friends may be.

So that's the answer to the first part of your question! Now let's move on to
the **third** part. I'll come back to the second in a moment. You ask about
the differences between these two sentences:

>   * 何かあったのだろうか。
>   * 何かあったと思う。
>

They are actually quite different. To answer, however, we'll need to analyze a
third:

>   * 何かあったのだろう。
>

But wait! Aren't ～だろう and ～だろうか the same thing? The answer: **no.** The first
is for confirmation ("Something happened, right?") or conjecture ("Something
probably happened."), while by attaching か it becomes either a question ("Did
something happen?") or wondering ("I wonder if something happened.").

~~～と思う, on the other hand, is simply used to express what one thinks. It
contains conviction: "I think something happened," while ～だろう（か） is much more
uncertain.~~

_[Edit: Derek Schaab pointed out in the comments that this is a less than
satisfactory explanation. Allow me to try again. Here goes...]_

～と思う, on the other hand, offers one's thoughts. When you say ～と思う, you believe
what you are saying; the same is not _necessarily_ true for だろう (though it may
be much of the time). It's difficult to compare to these two because 思う is for
_thoughts_ and だろう is more for _guesses._ ～と思う is always subjective, but
subjectivity isn't an issue with だろう: it can range from completely subjective
to based in solid fact.

Now that we have this out of the way, what is the difference between だろ and
だろう? First of all, だろ is even more informal than だろう. But more importantly, I
do not believe it can be used with か, though I may be wrong.

As for the actual difference in sound, the difference is that だろ is two morae,
and だろう is three. Basically that means that だろ is the same length as みず, but
in だろう, the "o" sound is twice as long, making it as long as みずが. The traits
of short and long vowels in Japanese could be a question in its own right,
however.

