関係がある【かんけいがある】

関係がある (かんけいがある) expresses that something is related to, has a connection with, or is involved with something else. It combines the noun かんけい関係 (relationship/connection) with the verb ある (to exist), literally meaning "a relationship exists."

Basic usage

The most common patterns use the particles と or に to mark what something is related to:

Both と and に are used, though と emphasizes a mutual connection between two things, while に tends to mark the thing one is connected to.

Negative: 関係がない

To say something is not related or has nothing to do with something, use the negative form かんけい関係がない:

This negative form is very common in everyday conversation, often to deny involvement or relevance.

Degree of connection

You can modify 関係がある with adverbs or adjectives to indicate the degree of connection:

Common modifiers include ぶかい深い (deep), おおきな大きな (significant), and なんか何か (some kind of).