そうこうするうちに

expression, adverb

in the meantime; meanwhile

Used when something happens while you are busy doing this and that; often implies a passage of time during miscellaneous activities.

See also: そうこう · そうこうしているうちに

• そうこうするうちに、すっかり日ひが暮くれてしまった。

  In the meantime, it got completely dark.

• そうこうするうちに、電でん車しゃの時じ間かんが来きてしまった。

  While I was doing this and that, the train time arrived.