Is there a way to differentiate these topics?

Bunpro
#1

I’m having trouble reviewing these topics since I don’t seem to understand how to differentiate each one from another:

And I think there’s even more (like the casual なきゃ, etc)

I understand there’s differences in formality or even specific nuances, but I don’t seem capable of remembering or applying the clarification notes on each review to find the correct answer.

Sometimes it’s funny because the app replies with “Use a different form”, then “Use a more formal way of saying this”, then “That is very formal, try a more casual way to say this”, then “That’s the most casual form, can you try a slightly formal way to express…”

Is there any advice you could share?

Thanks in advance!

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#2

You see them in N5 as four separate points.

なくちゃ Which is not just casual, but spoken
“Must do” equivalent

Then, you see two which start and mean the same, with one being polite.

なく ては or ちゃ + いけない or ならない
Both mean “must do”
いけない is 行く → いけない (not いかない)
ならない is なる → なれない (not ならない)

行く Potential + negative = Cannot go
なる Potential + negative = Cannot become

When you use it, with a double negative it translates lit as : You can not go not [verb] / You can not become not [verb]

The third one you saw in N5 is the only one that means the opposite, dropping the double negation.
は + いけない
You can not go [verb]

In N4, you see similar points with this pattern :
なければ or なきゃ + いけない or なれない

Here, it’s ければ which is important.
The double negation is still present.

ば is seen in a grammar point the lessons don’t link.
It’s a condition roughly translating to “If X, then Y”.
When you apply it to ない, you get なければ “If not X, then Y”

You mix both : “If not [Verb], then it cannot go”
As a more natural TL : You have to do X.

EDIT : ならない not なれない. Bunpro cards say they mean “cannot” as if the verb used the potential form. ならない means “to not become”.

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#3

Eventually you’ll get a feel for it what is used when, and this is one of those cases where comprehension is much more important than producing the nuance on your own, because you can perfectly spend years using only one of them and be perfectly adequate. So I wouldn’t overthink it and just instead painfully cycle through them without marking them wrong, until you hit the correct one.

Until then:

文法を復習しなければいけない
文法を復習しなければならない
文法を復習しなくてはいけない
文法を復習しなくてはならない
文法を復習しないといけない
文法を復習しないとならない

なければならない does not use the potential negative, just the negative

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#4

My bad, thx you

Bunpro says “Cannot” in the N5 and N4 lessons, hence why my brain corrected what it was reading to make it make sense

I will report it though on said cards, since the other does use potential but it creates confusion imo

Also adding an edit note at the end of my previous reply

#5

I feel like it makes more intuitive sense to describe it literally as You can’t proceed >without< [doing] or Nothing will come out from >not< [doing]. As you can see, both take some concept of restriction (that is what いけない or ならない are), and they restrict the concept of not doing the action. The double negative turns positive.

As people have pointed out, you can likely get by your day by not caring. I guess if you wanted to explore differences, see how the choice of conditional or restrictive remark change between each.

The pattern is basically Negative Statement, Conditional + Restriction as a double negative. That is;

なくては or なければ or ないと (negative conditional)
added to
いけない, or ならない, or だめ (restriction)

edit: I saw some better sentences to refer to that still feel literal.

There are even the fancy ones:

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#6

@MonoTranslucido You can check out the Topic which groups these points together: Needs Must | Bunpro

One reason we built Topics is to try and better compare similar points, so hopefully it helps. Admittedly, this particular group of grammar points is a rough patch for most people. Once upon a time I was a Bunpro user and I have a very strong memory of repeatedly failing these reviews when I first learnt them, although the alt answer/hint system has dramatically improved since then.

As Topics is in a semi-beta feel free to check out the other ones as well and let us know what you think if you have time to try a few :bowing_man:

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#7

This cluster of grammar points is by far the number one case of where ‘hitting the “I believe” button’ worked for me, i.e. agonizing and trying to intellectualize a solution out of this problem never yielded good results for me. I might’ve “gotten it” for 15 minutes, but when the points came up for review again a day or two later, it had reverted back to fuzziness. Just rolling with the punches and doing sets and reps in Bunpro, and it really did gel for me (with time).

These points caused me great consternation before, but nowadays I often answer them by feel. I’ve frequently had times where the hints and explanations start getting me conflicted about what to write, but then I just think “I dunno, to hell with it, but this FEELS like a いけない question, so I’m just going to shoot from the hip”, …aaaand then I get it right. Maybe that’s indicative of nothing I read was sufficiently elucidating, but I hypothesize that seeing similar grammar constructions used in subsequent grammar points is what actually helps make it ‘click’. But regardless…

My advice for the OP would be to not sweat it too much and just grind forward.

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#8

Wow thanks! Didn’t know that existed :slight_smile:

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#9

Thanks for the explanation, truly. Still my point is… when reviewing them, it is hard to guess which is the one required by Bunpro.

For me, these are more or less the same as reviewing バイク vs オートバイ, or asking for the translation of ロック. I understand the concept of it, I know the point they’re trying to review, but still… cannot figure out which one should I use. I assume it’s based on context, but sometimes… it’s not pretty clear?

#10

You can read more about it here - any feedback is greatly appreciated as well!

#11

I wouldn’t treat all of these as totally separate “must” grammar points.

A simple way to organize them is by register: なきゃ / なくちゃ are very conversational, while the longer forms are more neutral or formal. After that, exposure will teach you the smaller differences better than memorizing English labels.

Also, if Bunpro wants one specific variant but you understand the sentence and another one feels natural to you, that doesn’t automatically mean your Japanese intuition is wrong.

You’ll probably start noticing pretty quickly that certain characters or situations favor certain forms.

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