I read somewhere that 形容動詞 are a special subclass of nouns. Contrarily 形容詞, the い adjectives, are actually a lot more similar to verbs. During the time that I have been learning Japanese language (almost a year) I have developed the notion that verb is an essential part of a complete sentence and な-adjective can not fullfill the duty of the verb. Yet, In The essence of sentence construction on Tae Kim's Blog, the part about Treating verb phrases as nouns, in order to make a sentence, な-adjective is used as a substitute for verb and だ comes after that only "If you don’t want to sound girly". In this example on Tae Kim's Blog


is being treated as a complete sentence and then we read:

Finally, let’s add a bit of motherly advice-sounding nuance to it and give it a more conversation style, since it sounds like the speaker is trying to admonish the listener.


If you don’t want to sound girly, you’ll want to add 「だ」 when using 「よ」 with nouns/na-adjectives.


My question is that, in order to make a complete sentence , 大切 being a な-adjective, why it is not necessary for a verb to come after it?

  • I don't think there's any answer to this other than simply "the rule you learned is incorrect, and a sentence in Japanese does not have to end in a verb."
    – mamster
    Dec 6, 2018 at 0:47
  • 'だ comes after that only "If you don’t want to sound girly"' - that advice is purely for the use of よ.
    – ZLK
    Dec 6, 2018 at 2:46
  • Answering to this question is close to creation of your own grammar theory. You can think whatever, but that doesn't seem really substantial anyway.
    – user4092
    Dec 7, 2018 at 11:32
  • @user4092 Very interesting! Dec 7, 2018 at 13:16

1 Answer 1


I may be misunderstanding your question but I don't think a verb is always necessary after なadjective. In this case, you can think of it that there is a be-verb and sometimes the be-verb is hidden.

This sentence is omitting the be-verb and it means "It's good to exercise a lot but taking a break is also important".


The be-verb for this sentence could be




The is just a post positional particle, not a verb. You can look up 終助詞 for more explanation on this. In short, it kind of adds a little more nuances to the sentence.

  • 1
    Downvoter, it's always nice to give an explanation for a down-vote.
    – kabichan
    Dec 12, 2018 at 16:50

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .