かどうか（N4)

 Meaning: whether or not~.

How to use			examples	Translation
Verb	Short form	＋かどうか	いく　かどうか　あとでしらせます	I'll let you know later if I'm going or not.
いadj			おいしい　かどうか　わからない	I don't know if it's delicious
なadj			にほんじん　が　しんせつ　かどうか　わからない	I don't know if the Japanese are kind
			かれが　げんきじゃなかったかどうか　おぼえていない	I don't remember if he wasn't fine
Noun			あしたが　やすみか　かどうかかくにんして	Check if tomorrow is a holiday
			きけんな　くに　かどうか　しんぱい　です	I'm worried if it's a dangerous country

 

About Particle か

 

Note：The particle 【か】is added to the end of a question or has the meaning of【or】, but other than that, It is used to express something unknown or undecided to someone at some point in the past, present, or future.

  

 

1.     “Question words + か” expresses unspecified things, e.g. “something.”

1-1           なにか　たべましたか？　Did you eat something?

 

2.     “Question words + some elements + か + particle” makes a noun clause.

どう	勉(べん)強(きょう)するか	が	大切(たいせつ)です
Adverb（Question word）	Verb + か	Particle
Noun clause: Subject			Predicate
How to study is important.

 

※when the particle が and を are placed in this formation, they are often omitted.

どんな人(ひと)かを説明(せつめい)します。  [I] will explain what kind of person [he/she] is.

値(ね)段(だん)がいくらかは大切(たいせつ)じゃないです。  As for how much the price is, [it] is not important.

いつ着(つ)くかがわかりません。  [I] don’t know when [I] will arrive.

 

3.     “…かどうか” and “…か…か” expresses “whether” in Japanese.

雨(あめ)が	降(ふ)るかどうか	を	調(しら)べます
Subject	Verb + かどうか	Particle
Noun clause : Object			Verb
[I will] check whether it will rain or not.

 

Also,【のか】may be used instead of 【か】, but the meaning is the same.

Just as【のだ】 is used instead of 【だ】,【のか】is used when you want to emphasize.　like：雨あめが降ふる(の)かどうかを調べます

Exercises 

Genki2 

Genki 2 work book