〜そうです(伝聞)
I hear that…machine translation
FormationPlain form + そうです (noun・な-adjective + だ + そうです)
〜そうです (hearsay) is used to pass along information you heard or read, exactly as received: 雨が降るそうです (I hear it's going to rain). This pattern attaches to the plain form: 降るそうです, おいしいそうです, 静かだそうです, 学生だそうです — nouns and な-adjectives must take だ.
The source of the information is often stated with 〜によると: 天気予報によると (according to the weather forecast), ニュースによると (according to the news), 田中さんによると (according to Tanaka-san). The pair によると + 〜そうです appears very frequently — you should memorize it as a sentence template.
Don't confuse it with 〜そうです (appearance, "looks like"): the two patterns differ completely in how they connect — hearsay attaches to the plain form (降るそうです: I hear it will rain), appearance attaches to the ます-form with ます dropped (降りそうです: it looks about to rain). Compared with 〜らしい, hearsay 〜そうです relays exactly what was heard and usually names the source, while らしい mixes in the speaker's own inference.
Examples
天気予報によると、明日は雨が降るそうです。
According to the weather forecast, I hear it's going to rain tomorrow.
田中さんは来月結婚するそうです。
I hear Tanaka-san is getting married next month.
あの店のラーメンはとてもおいしいそうです。
I hear the ramen at that shop is really delicious.