Modifying Japanese Adjectives to Adverbs
Recall that an adverb is usually used to modify a verb, just as an adjective is usually used to modify a noun. In English, in general, you add “ly” to change adjectives to adverbs. For example, aggressive is an adjective and aggressively is an adverb. In Japanese, there is also a regular way to change adjectives to adverbs, as follows:
い-adjective: change い to く
な-adjective: change な to に
Exception: change いい (good) to よく (well).
Unlike English, which you may put adverb either before or after the main verb in a sentence, you usually put the Japanese adverb before the main verb.