Express a reason or a cause for something; 'because', 'since', 'so'.
The ～ので grammar point is used to express reason or cause for something. It can be translated as 'because', 'since', or 'so' in English. It is similar to から but is considered more polite and formal. The formation differs depending on whether it is used with a verb, い-adjective, な-adjective, or noun.