was pipelining

• past progressive

  past progressive

  Used to describe an ongoing action or continuous state that was happening at a specific time in the past.

  of pipeline.
  pipeline

  noun

  a long tubular conduit or series of pipes, often underground, with pumps and valves for flow control, used to transport crude oil, natural gas, water, etc., especially over great distances.

Related Words

• agenda
• almanac
• card
• chronology
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• docket
• journal
• lineup
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• table
• timetable