合あわせ行おこなう

godan verb (-u)

do together; carry out simultaneously

Used when two or more actions, tasks, or events are performed at the same time or in coordination. Often implies a planned or combined effort.

• 会かい議ぎと昼ちゅう食しょくを合あわせ行おこなうことにした。

  We decided to hold the meeting and lunch together.

• 二ふたつのイベントを合あわせ行おこ