N4
そう
Look like, Appear, Seem, Have a feeling that
彼女は毎日走っていそうだ。
She seems like she runs every day.
Explanation
「そう」 has 2 uses
1Looks …
After an adjective stem: a judgment from how something looks: 「おいしそう」 looks tasty, 「嬉しそう」 looks happy.
これは正しそうだ。
This seems correct.
あの店員は丁寧そうだ。
That clerk seems polite.
2Looks like it will
After a verb's ます stem: something looks about to happen: 「雨が降りそうだ」 it looks like rain, 「ボタンが取れそう」 the button is about to come off.
雪が降りそうです。
It looks like it is going to snow.
彼女は毎日走っていそうだ。
She seems like she runs every day.
Mixed up with
'Looks like' 「そう」 attaches to the stem: 「おいしそう」, 「降りそう」. 'I hear that' 「そうだ」 attaches to the plain form: 「おいしいそうだ」, 「降るそうだ」. The forms are different.
It is not used for things you can plainly see to be true, since nothing needs guessing.
Negatives: adjectives 「おいしくなさそう」; verbs 「降りそうにない」, 「降りそうもない」.