foreign currency

I keep it.

私は保管します

I keep the foreign currency.

私は外貨を保管します

I keep the foreign currency in the safe at home.

私は家で金庫に外貨を保管します

I keep the foreign currency in the safe at home on the day we get back from the trip.

私は旅行から帰った日に家で金庫に外貨を保管します

I keep the foreign currency in the safe at home with my wife on the day we get back from the trip.

私は妻と旅行から帰った日に家で金庫に外貨を保管します