Why is "な" in "円滑な活動を助ける" not "に"?


why is "円滑" an Adjective not an Adverb in this sentence?




It's simply because 円滑 adjectivally modifies 活動, not 助ける, in this sentence.
What's smooth in this context is the 活動 (activity) itself, not the manner of
helping/promoting. In other words, the speaker wants to say "smooth activity",
not "to help/promote smoothly."




It's simply because 円滑 adjectivally modifies 活動, not 助ける, in this sentence.
What's smooth in this context is the 活動 (activity) itself, not the manner of
helping/promoting. In other words, the speaker wants to say "smooth activity",
not "to help/promote smoothly."

