そうに / そうな
- 1そうに modifies a verb to describe how someone appears while doing an action.Ex. 1
- 2そうな modifies a noun to describe a quality it appears to have.Ex. 2
- 3With a verb stem, そうに / そうな can describe something that looks about to happen.Ex. 3
i-adj. stemWhat is left once the final い is removed (the stem).
高・おいし・新し
いい first becomes よい: よさそう・よすぎる.
na-adj. stemA na-adjective without な, i.e. the form listed in a dictionary.
静か・きれい・好き
Add な before a noun (静かな部屋); as a predicate, follow it with だ／です (静かだ).
Verb masu-stemWhat is left of the masu-form once ます is removed; also called the continuative form (連用形).
行き・食べ・し・来（き）
Irregular: いい becomes よさそう, ない becomes なさそう (e.g. 「よさそうな店」「つまらなさそうに」)
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Neutral and common in speech and writing, this pattern describes impressions of feelings, taste, or something about to happen based on outward signs. そうに describes the apparent manner of an action, while そうな describes a noun. Compared with broader inference or comparison patterns, it foregrounds what appears to be the case.
Do not translate 楽しそうに as simply “happily”; it describes how the person appears, not necessarily how they feel.
Note that いい and ない become よさそう and なさそう, not いそう and なそう.
- 1.ようだN4「ようだ」attaches to the plain form (nouns take 「の」) and allows inference from feelings or available information; it can also express metaphor. 「そうに／そうな」relies only on appearance, and with verbs it means something is 'about to happen' — the two are generally not interchangeable.
- 2.みたいだN4「みたいだ」attaches to the plain form or directly to nouns (e.g. 「学生みたい」); its basis is observation and impressions, not limited to appearance, and it can also express metaphor. It is colloquial — use 「ようだ」in formal contexts.
- 3.らしいN4「らしい」is mostly based on hearsay or outside information and carries a sense of distance, while 「そうに／そうな」is a direct impression from what's in front of you. 「らしい」attaches to the plain form and can follow nouns (e.g. 「雨らしい」), but 「そう」cannot attach to nouns.
- 4.ように見えるN4「ように見える」attaches to the plain form (nouns take 「の」); it often implies things may not actually be as they appear, and it can pair with 「まるで」for metaphor. With verbs, it does not mean something is 'about to happen'.
ようだ and みたいだ can express broader comparisons or inferences, while らしい can convey inference or reported information; そうに / そうな focuses on an appearance-based impression. ように見える explicitly says how something looks, rather than using the stem-based そうに / そうな construction.
