Changing an adjective to an adverb (e.g. he ate quickly) in Japanese is simple, although the rules differ between i-adjectives and na-adjectives.
For i-adjectives we replace the い with く. For example, “cheap” goes to “cheaply” like so:
“Good” goes to “well” like so:
いい ⇒ よく
We can then append our adverbs before the verb to make a sentence.
|Wake up early.|
|To push with force [strongly].|
|Sell for a good price.|
For na-adjectives we add に. For example, “easy” goes to “easily” like so:
“Quiet” goes to “quietly” like so:
Some example sentences: