Translation adverbs


I am having a problem on translating the meaning of adverbs. I am a native
Portuguese speaker, so in Portuguese an adverb is usually a separate word that
modifies a verb or an adjective.

Ie: _muito feliz_ (very happy), _muito_ is an adverb modifying the adjective
_feliz_.

Now, I could be mistaken, but it seems that in Japanese that the adverb is
changing and becoming one with the adjective like in 嬉しい → 嬉しく

Now I know the first means 'happy' and the second means what? Is there a
pattern to know what the translation will be after the adjective becomes an
adverb, or do I have to learn every adjective individually?




Yes, 嬉しい means _happy_ and 嬉しく means _happily_.

The rules to make adjectives into adverbs are fairly simple in Japanese:

  1. For i-adjectives, change the last い to く. 
    * 美しい (beautiful) → 美しく (beautifully)
    * 速い (quick) → 速く (quickly)
  2. For na-adjectives, add に. 
    * 元気 (vigorous) → 元気に (vigorously)
    * 簡単 (easy) → 簡単に (easily)

And there are many pure adverbs that do not conjugate.

  * すぐ (soon)
  * しばらく (for a while)




Yes, 嬉しい means _happy_ and 嬉しく means _happily_.

The rules to make adjectives into adverbs are fairly simple in Japanese:

  1. For i-adjectives, change the last い to く. 
    * 美しい (beautiful) → 美しく (beautifully)
    * 速い (quick) → 速く (quickly)
  2. For na-adjectives, add に. 
    * 元気 (vigorous) → 元気に (vigorously)
    * 簡単 (easy) → 簡単に (easily)

And there are many pure adverbs that do not conjugate.

  * すぐ (soon)
  * しばらく (for a while)

