Adverbs

This is another relatively simple topic, but it still warrants its own post. Adverbs are useful for describing how an action is performed, or for specifying things like frequency or amount.

It's easy to turn existing i- and na-adjectives into adverbs. For na-adjectives, I can simply add に to the end, and bam, it's done. For i-adjectives, I must replace the い with く instead. That's it. It's much like adding -ly to the end of words in English.

静かに眠る。
Sleep quietly.

かわいく歌う。
Sing cutely.

早く起きる。
Wake up early.

陽気笑う。
Laugh cheerfully.

嬉しく吹く。
Whistle happily.

よく勉強する。
Study often.

Tae Kim notes that adverbs do not require particles and are fairly flexible with where they're placed in the sentence. I think different placement can change the noun or verb that you're trying to emphasize.

Credit goes to Tae Kim's lesson seen here.