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I understand you can say something like

> “彼は強くなるばかり”

To express this meaning but could you say

> “もっともっと強くなっている“

Sorry if this seams like a stupid question I think I just heard it somewhere
and I need clarification. To add to it are there any other ways to say more
and more. (And by this I mean the -er and -er construction.)
CC BY-SA 4.0
2018-07-02T12:01:22.193
59840
2018-07-06T12:48:36.183
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question
word-usage
Can もっともっと be used as more and more?
Yes もっともっと works just as you expect in colloquial sentences, but it may sound
a little too "dramatic" or even "childish" depending on the context. The most
common way of saying _more and more_ is
[ますます](http://japanesetest4you.com/flashcard/%E7%9B%8A%E3%80%85-masumasu/),
which works both in formal and casual sentences.
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2018-07-03T07:10:07.677
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2018-07-03T08:02:47.753
2018-07-03T08:02:47.753
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I need clear context to understand a situation for the first sentence, though
these two sentences have different nuance.

You usually say `なるばかり` like

> 寝ていても彼は強くなるばかり

Even he just sleeps but getting stronger.

So `なるばかり` has a meaning like "No matter what you do, it's getting something."

The latter one is like  
You: That guy got stronger.  
Me: Oh like you?  
You: NO! He is way stronger than me (`もっともっと強くなってるよ！)`

Hope this clears your confusion a bit.

**EDIT**  
I didn't see your question at the end, so yeah, ますます、どんどん、ぐんぐん are similar and
as @naruto says ますます is more formal.
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2018-07-03T07:28:25.523
59855
2018-07-03T07:38:38.763
2018-07-03T07:38:38.763
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I had a very hard time interpreting "もっと強くなっている" as "is getting stronger," (I
had actually written we can't do so) but now it seems I can.  
As I understand it, "もっともっと強くなっている" means "is getting much much stronger than
he was strong before."  
So in a roundabout way it can be describing the same situation as "getting
stronger and stronger" does. 「ますます」or 「どんどん」directly describes the
intensiveness of increase in strength, on the contrary.

I am deeply sorry for my repeated editing.

EDIT  
I had come up with a comparative clause that is likely incorrect("...than he
was strong before"). What I meant was like "He is getting stronger, which will
make him much more stronger than he is now."  
Aside from that, what troubled me in the first place was when we
say「[彼]{かれ}はもっと[強]{つよ}くなっている」we need implicit reference to a strength that we
are comparing to. That makes it distinct from the sentence "He is getting
stronger," for which the Japanese equivalent may simply be「彼は強くなっている」or
「彼はより強くなっている」if you prefer a verbatim translation.  
And as I just learned from [広辞苑]{こうじえん}, this use of「より」as an adverb began in
Meiji Era to translate comparative adjective in Indo-European
languages(「ヨーロッパ語」in 広辞苑) into Japanese.
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2018-07-03T13:57:03.867
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2018-07-06T12:48:36.183
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answer