Godan verb with 'u' ending, Intransitive verb
to accompany; to go hand in hand with; to be consequent upon
usu. 〜に伴う
戦争には悲惨と悲しみが伴う。Misery and sorrow accompany war. Godan verb with 'u' ending, Transitive verb
to be accompanied by; to bring with; to take with; to be involved in
usu. 〜を伴う
Also written 伴なう【ともなう】