used to introduce reasons, explanations, or purposes for actions, events, or statements
なぜなら
used to introduce a reason, cause, or explanation for the main clause
気分が悪かったので、彼は家に帰ることにした。
used to express that one is considering a particular fact before sharing one's opinion or making a judgment
そのことを考慮に入れると
used to expresse purpose or intention, explaining the reason behind the main clause
〜ために
used to indicate a precaution or attempt to avoid a particular undesirable outcome
凍らないように
used to indicate a result or outcome related to what has just been said or happened
今
used to indicate that something is done with the aim of achieving a specific outcome
〜するために
used to introduce a condition that is considered as the basis for a particular action or decision
〜という仮定のもとで