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had collaborated

  • past perfect
    of collaborate.
    collaborate
    verb (used without object)
    to work, one with another; cooperate, as on a literary work.

Example Sentences

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Two Senegalese villages that had collaborated with her before volunteered to take part.

From Science Daily Jan. 24, 2026

The 9/11 Commission later claimed to find no evidence that Saddam had collaborated with al Qaeda.

From The Wall Street Journal Nov. 19, 2025

It was about how European countries had collaborated with the Nazis during World War Two.

From BBC May 7, 2025

The $5-million figure appears to be based on work that Blige and Vado had collaborated on successfully, not work Vado released by himself, LoRosa relayed.

From Los Angeles Times May 1, 2025

Several people had collaborated to write “The Ballad of Ben, Brewer Supreme.”

From "The Name of the Wind" by Patrick Rothfuss