(not) involved with
(not) concerned with
(no) connection with
(no) relationship with
(not) related to
Structure
- Noun + に/と + 関係がある / 関係がない
- Noun1 + に/と + 関係 + が / の + ある / ない + Noun2
[Used to express something in relation to something else]
[に and と are generally interchangeable, but に is predominantly associated with non-reciprocated/one-sided relationships, while と is used more often in mutual/two-way relationships]