～そのために

At a glance

そのために starts a new sentence and points back to the one before it. It can mean "to that end / for that purpose" (the first sentence is a goal) or "because of that" (the first sentence is a cause).

[Goal]。そのために、[what you do to reach it]。
[Cause]。そのために、[result]。

大学だいがくに入はいりたいです。そのために、毎日まいにち勉強べんきょうしています。 I want to get into university. To that end, I study every day.

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How to form it

そのために is a connector. It usually goes at the start of the second sentence and is often followed by a comma.

The sentences around it can be polite (です・ます) or plain (casual). そのために itself does not change.