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Must do A; have to A
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20
    ある から      しなければ ならない 
There's a test tomorrow, so I need to stay up all night and study.
24
        チケット        なりません  
You need to buy a ticket before you enter the movie theatre.
14
          ので             ならない  
My mother is drunk, so I have to clean up all by myself.
12
あなた  その             ならない  
You've got to answer for the outcome.
6
あなた  すぐ 宿   しなければ ならない  
You must do your homework at once.
13
あなた               ならない  
You have to protect your family.
8
あなた            ならない 
You must study your entire life.
12
       ならない  
I have to buy one tomorrow.
8
          ならない  
You must come back before nine o'clock.
7
  この         ならない んです  
I need to get off at this station.
8
       しなければ ならない ので  また          
I need to hurry and do some shopping, so let's talk again another time.

Getting the sentences
Construction
(Elements in parentheses are optional.)
AVerb: ない form
-い
ければ
ならない
Basic Examples:
まなければならない (must rest)

Where this grammar is found


User notes
0

Other ways to express obligation:

~なくてはならない
~なくてはいけない

~ないといけない
~ないとならない

~ねばならない
~ねばいけない
7 years ago
avatar 火曜 - Level 17
2
An even more impolite way is to omit the ならない or いけない and just なれれば respectively なきゃ.
12 years ago
avatar Sairen - Level 1
4

A contracted, more casual form of this pattern is なきゃならない and an even more casual form is なきゃんない
13 years ago
avatar Wallace - Level 1
10

While いけない and ならない are interchangeable the subtle difference between them is that ならない tends to express the speaker's own sense of obligation while いけない tends toward directing a sense of obligation toward the hearer.
13 years ago
avatar Wallace - Level 1

Discussion about this grammar
avatar
Years Studied: Since April '18
Level: 25, : 49
Should なきゃならない be included in this section or is it a different grammar point?
0
4 years ago
avatar
Site admin
Level: 105, : 6,478
Same! - please feel free to add a usage note so you can get credit for it.
0
4 years ago (Edited 4 years ago.)
avatar
Years Studied: Since April '18
Level: 25, : 49
Thanks! Actually, looking at the usage notes it seems someone beat me to it quite some time ago - oops!
0
4 years ago



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