Title

Adverbs (副詞ふくし) modify verbs or adjectives, and although adverbs may show up in various places in a sentence, they are typically used at the beginning of a sentence. This isn't a rule, and you still see adverbs just about anywhere. It is simply a trend that you will become familiarized with.

Adverbs come from various sources. However, not every kind of adverb will be discussed in this lesson, and we will continue learning more about adverbs in consecutive lessons. 

Most adverbs come from nouns. This sometimes makes it hard to tell when an adverb phrase is actually being used as a noun or not, but we'll learn more about how to discern between them. You've actually already gotten used to such words. Temporal words and counters are great examples of things that can be nouns or adverbs. 

Only a handful of adverbs are true adverbs--もう (already). A "true adverb" can never be used as nouns, and not surprisingly, they don't appear to come from nouns at all.

Below are some of the most common adverbs in Japanese. Before we get to example sentences, we'll need to take into account the notes that follow the chart. 

Usage Notes:

1. The general reading for 今日 is きょう. こんにち is formal and usually expected if used in formal writing. In general speech, it is usually limited to こんにちは. こんじつ is a rather outdated reading that you should not expect to see.
2. 本日 is read as ほんじつ, not ほんにち. It is very formal and usually treated as a 書き言葉.
3. 明日 is formally read as みょうにち. あす is slightly more formal than あした, but both are common readings in the spoken language.
4. 昨日 is formally read as さくじつ. However, this is usually restricted to very honorific speech or writing. Its normal reading is きのう.

 Examples

1. 彼女()はまだ時計()の見方(みかた)を知(し)らない。
    She still doesn't know how to tell time.

2. とりわけ今日は寒い。
    Today is particularly cold. 

3. 救急車きゅうきゅうしゃが二台来にだいきました。(Polite)
    Two ambulances came.

4. ついに冬(ふゆ)も終(お)わった。
    Winter has finally ended.

5. 薬品やくひんは現在げんざいかなり安いです。(Formal)　　　　
    Pharmaceuticals are currently fairly cheap.  

6a. きのうと比べてちょっと暖あたたかいね。（Casual)
6b. きのうと比べて｛すこし・ちょっと｝暖かいですね。(Polite)
       It's a little warm compared to yesterday, isn't it?

Vocab Note: あたたかい is written as 温かい in reference to heat of touch or emotion and 暖かい as in reference to climate, body temperature, and even color.　あたたかい may also be　あたたかな or even あったか｛い・な｝ in casual speech. Remember that な is used before nouns. As for "hot", 熱あつい refers to things being hot and 暑あつい refers to the weather being hot. 

7. たくさんありますか。
　 Is there a lot?/Do you have a lot?  

Grammar Note: たくさん may either be used as a noun or an adverb. Never say たくさんな when using this as a noun quantifier. 

 もう　VS　もっと

  Both have meanings of "more." The first, though, can be used in the sense of "once more/further" and the second is "more" as in the degree of something. Aside from that, もう also means "already" and "shortly." 

8a. もう一回(いっかい)　〇
8b. もっと一回　　X
       Once more  

9. もっと時間()が必要(ひつよう)だ。
      I need more time. 

10. 寿司すしをもう食べた。
     I already ate the sushi.

11. もっとお金が必要(ひつよう)です。 
      More money is necessary.

12. もう一()つ上()のクラスに移(うつ)った。
      I've already switched to a class above (the previous one).

13. もうすこしがんばって。
      Just keep on a little bit more.

14. もう終わった。
     It has already ended.

Some て phrases are adverbial. These phrases have no "conjunctive" role as the literal grammatical function of て has been lost in them. It is best to treat them as separate words in your vocabulary. 

15. 歩いて10分ぷんかかります。
      It will take 10 minutes by foot.

16a. それは初めて聞く話です。
16b. それは初めて聞きました。 
16c. それは初耳です。(Idiom)
        That's a new story to me/That's first in my ears.