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Should do A; Must do A

  1. Should do A; Must do A
  2. Should not do A; Must not do A
Join for free or Login to study this and other grammar in the lesson Verb Helpers II!
毎まい日にち笑わらう べきだ と 思おもう 。 
I think one should smile every day.
好
11点
毎 日 三 食 食 べ る べき だ 。 
You should eat 3 meals a day.
好
4点
前 回 の 試 験 に 落 ち た 以 上 、 前 より 勉 強 すべき だ ！ 
Since I failed the exam last time, I really need to study more than before!
好
16点
小 学 校 の 先 生 は 親 切 で 元 気 で ある べき だ 。 
Elementary school teachers should be kind and energetic.

Getting the sentences
Construction
(Elements in parentheses are optional.)
AVerb: Dictionary Form べき
 
すべき
 
 
だ
Basic Examples:
読むべきだ (must read)

運動すべきだ (must exercise)

Notes
するべき is written as すべき (not in spoken, but written form).
Related Expressions
べからざる
Where this grammar is found
Nihongo So-Matome N3 (日本語総まとめ）: 第３週　３日目
新完全マスター文法 N3: 第１部　１０課
新完全マスター文法 N2: 23課・感想と言う・主張する
JLPT N3 / Intermediate: Verb Helpers ②


User notes
好
0点

Originally a literary language, but now it is used in both written and spoken languages
3 years ago
まさむね123 - Level 1
 
Should not do A; Must not do A

  1. Should do A; Must do A
  2. Should not do A; Must not do A
Join for free or Login to study this and other grammar in the lesson Verb Helpers II!
好
9点
子 供 の 前 で タバコ を 吸 う べき ではありません 。 
You shouldn't smoke in front of children.
好
5点
緑 茶 は 熱 湯 で 淹 れ る べきではない よ 。 
Green tea should not be made with boiling water.
好
3点
学 生 が 勉 強 を 怠 け る べきではない 。 
Student's should not neglect their studies.
好
3点
失 敗 し た なら 成 功 す る まで 諦 め る べき じゃない よ 。 
If you failed you shouldn't give up until you succeed.

Getting the sentences
Construction
(Elements in parentheses are optional.)
AVerb: Dictionary Form
べき
で
は
ない
Basic Examples:
盗むべきではない (must not steal)

Related Expressions
べからざる
Where this grammar is found
Nihongo So-Matome N3 (日本語総まとめ）: 第３週　３日目
Nihongo So-Matome N2 (日本語総まとめ）: 第４週　５日目
新完全マスター文法 N3: 第１部　１０課
新完全マスター文法 N2: 23課・感想と言う・主張する
JLPT N3 / Intermediate: Verb Helpers ②


User notes
No user notes have been added. Logged-in users can add user notes.

Discussion about this grammar
avatar
fareastfurfaro
Grammar mod. Level: 1, 好 : 503
I've been looking around and it seems like するべき is also correct. There are literally millions of examples of it on the Internet (not always a good way to deduce things, I know) and my grammar books all say it as well.

http://oshiete1.watch.impress.co.jp/qa5035889.html makes it sound like すべき is a more formal version of it. Anyone have any other input on this?
好
0点
12 years ago
avatar
マイコー
Site admin
 Level: 122, 好 : 6,898
Checked with a native, and you were write that すべき tends to appear in writing, while するべき is used more often in speech. She also looked at that webpage you linked, and while the user talked a lot about nuance, that nuance could just as easily be reversed or not even noticed depending on who you talk to (and where you are).
好
1点
12 years ago
avatar
fareastfurfaro
Grammar mod. Level: 1, 好 : 503
Ah, interesting. Thanks for clearing that up.
好
0点
12 years ago
lilisin
Studying: Until I'm satisfied.
Level: 1, 好 : 141
If studying classical Japanese, this form comes from the classical auxiliary verb べし
好
1点
11 years ago
avatar
fareastfurfaro
Grammar mod. Level: 1, 好 : 503
Never heard that before, nice.
好
0点
11 years ago
Lang_learner
Years Studied: 2 years
Studying: Grammar and vocabulary
Level: 1, 好 : 56
What is the difference between this grammar point and はず when referring to what someone should do? Also what is the difference between this grammar point and ないとだめ, when referring to something you must or should do? Thanks in advance! :D
好
0点
9 years ago
avatar
できるだけ
Years Studied: Never enough!
Studying: 漢字
Level: 28, 好 : 565
はず is used more to show expectation. In English, we could say something like "She should have arrived by now," but this is the expectation (はず) "should", not the obligation (べき) "should". ないとだめ isn't too formal　- it's interchangeable with なければだめ and なくちゃだめ and so on - but べき is quite formal. I'd say that べき is also used more for universal rules (students should study), whereas ないとだめ could be used in reference to individuals ([i]you[/i] need to study.)
好
3点
9 years ago
avatar
マイコー
Site admin
 Level: 122, 好 : 6,898
I hear べき used a lot when teachers are lecturing students about studying hard, doing their homework...really, any kind of guidance/指導
好
1点
9 years ago



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