そうにSeem, Look like, Sound

Caution

そう may also be used when attached to the い-Adjective, ない. In this case, there is a unique conjugation rule which you will need to be careful of. As always, い will be removed from ない before attaching そう. However, さ will need to be inserted between な, and そう. This results in the construction なさそう.

• すごい！辛(から)くなさそうに食(た)べるね。
  Wow! You eat it like it's not spicy.
• 大事(だいじ)じゃなさそうな物(もの)は捨(す)ててもいいよ。
  You can throw away anything that does not look important.

Note that this addition of さ does not happen with verbs. This is due to the ない that is used with negative verbs being an auxiliary verb, and not an い-Adjective. With the auxiliary verb ない, simply remove the い, before adding そう directly to the stem.

• あの人(ひと)は怒(おこ)らなそうな顔(かお)をしているけどいつも怒(おこ)っている。
  He does not look like he gets angry a lot, but actually he is always angry.
• 彼(かれ)は美味(おい)しくなさそうにご飯(はん)を食(た)べている。
  He is eating his food like it does not taste good.