なくちゃ・なきゃMust do, Have to do

Most Recent Replies (31 in total)

• 

  Jake

  has to be done

  Structure

  • Casual Suffix
  • Verb[ない]・くちゃ・いけない
  • Verb[ない]・きゃ・いけない

  [short form・casual・colloquial]

  View on Bunpro

• 

  madmalkav

  This review point expect the anser in past tense, yet there is no clue about it.

  past.png776×260 12.2 KB
• 

  mrnoone

  @madmalkav
  Hey!
  It has been fixed

• 

  Marcus

  Can you tell me the rule here? When is the answer くちゃ・いけない, and when is it きゃ・いけない? I can’t seem to figure it out at all. Thank you!

• 

  eefara

  I think it’s either/or, isn’t it? At least, that’s the assumption I’ve been operating under.

• 

  mrnoone

  @Marcus, @eefara is right.
  There is virtually no difference in meaning.

  The etymology is different though.
  なきゃ comes from なければ (another contraction is なけりゃ)
  なくちゃ comes from なくては (there are some variations, like なくっちゃ).

• 

  Marcus

  Thank you!

• 

  Schuylerca

  If these are equivalent then what am I missing regarding the difference…
• 

  mrnoone

  Both answers are proper and acceptable

  Your understanding is correct!

• 

  Schuylerca

  Then is it a bug that it doesn’t accept the other answer? When you click “a” it only shows the one options as correct?

• 

  mrnoone

  It seems so,
  かいにいかなくちゃ
  かいにいかなくちゃいけない
  かいにいかなきゃ
  かいにいかなきゃいけない
  かいにいかなくちゃだめ

  are all accepted answers (among others).

• 

  Schuylerca

  hence my confusion/frustration

  if it’s a bug that’s great…means I’m only a little less dumb than I thought I was

• 

  mrnoone

• 

  nathan.powers10

  With this grammar point what’s confusing to me is the readings indicate you can just use なくちゃ or なきゃ without adding いけない but all of the examples include いけない. why is that if the point of these two suffixes are meant for shorter, more casual sentences?

• 

  mrnoone

  Hey

  Sorry for the late answer

  So basically, we weren’t using なくちゃ and なきゃ by itself in sentences, since the grammar point aims to train the whole phrase.
  Though they are accepted as alternative answers while reviewing.

• 

  Invertex

  So, I got to this example which tripped me up a bit:
  暑いので水をのまなきゃいけない

  As I find myself questioning if のま or のみ should be used for this and some other grammar points as I don’t recall being taught any rule for it. I had to look it up and learned that it’s the “causative form”, but I don’t believe there was a lesson on causative forms before this?

  Is there some sort of hard and fast rule? My guess here would be that because it’s a result of something else (it being hot out) that there is a “cause” for it and thus it uses this form, correct?

  (though that then brings up the question of why the negative of a verb uses the causative form as well, being one of the earliest lessons making us use this form)

  Thanks.

• 

  Pushindawood

  @Invertex Hey! 飲(の)まない is the casual negative conjugation of 飲(の)む. Since grammar constructions like なくちゃ and なきゃ require that the verb first be conjugated to the negative form (飲(の)む → 飲(の)まない → 飲(の)まなくちゃ/飲まなきゃ) verbs that end in む will conjugate to ま (飲(の)む, 込(こ)む, 読(よ)む, etc.). Hope this helps! Cheers.

• 

  Invertex

  Ah okay, that makes sense. So for most expressions/terms that start with な, the verb before them should be in the negative form? Or are there exceptions to this?

• 

  seanblue

  Not sure I get what you’re trying to generalize here. This specific grammar point (as well as the non-shortened versions) require the preceding verb to be conjugated into the negative form first. Other expressions don’t really come into play.

• 

  Invertex

  I’d assumed since it was listed as なくちゃ that the な was part of the phrase itself, but I guess the phrase is just くちゃ/きゃ like it shows split up in the structure section. So in my mind when I wrote that I was imagining similar things that “start” with な without first knowing if it required the negative form before it. It’s all good though.