行こうを共ともにする

expression, suru verb (irregular)

go on a trip together; accompany on a journey

Often used in the pattern ...と行を共にする. A somewhat formal or literary expression for traveling with someone.

• 彼かれとは何なん度ども行こうを共ともにした仲なかだ。

  He and I have traveled together many times.

• 来らい月げつ、友ゆう人じんと行こうを共ともにする予よ定ていです。

  I plan to go on a trip with a friend next month.