noun or participle which takes the aux. verb suruadverb taking the 'to' particleadverb (fukushi)onomatopoeic or mimetic word
1.
in a mumble; in a murmur; in undertones; in a whisper; in a subdued voice
adverb (fukushi)adverb taking the 'to' particlenoun or participle which takes the aux. verb suruadjectival nouns or quasi-adjectives (keiyodoshi)onomatopoeic or mimetic word