したがって

The word したがって can be used at the beginning of a sentence to express that the following statement is a logical consequence of what was stated in the previous sentence. It's used in written language and often translated as "therefore", "accordingly", "consequently", or "as a result."

英語は世界で最も使われている言葉の一つだ。したがって、英語を義務教育の中に入れている国は多い。
English is one of the most used languages in the world. As a result, there are many countries that include it within their compulsory education.

この季節には、モールがにぎやかだな。したがって、クリスマスの前に買い物したほうがいいよ。
The mall is really bustling this time of year. So, you should do your shopping before Christmas.

コーヒーにはたくさんカフェインが入っている。したがって、飲み過ぎると寝られなくなる。
Coffee contains a lot of caffeine. Therefore, if you drink too much of it, you'll get to where you can't sleep.

先月リーさんは仕事を辞めたんだよ。したがって、今お金がないんだ。
Lee-san quit his job last month. Consequently, he has no money now.