• Before Derek was even born, Thomas noticed presuppositions.
    Temporal Clause: Derek was born.
  • While Kensington was revolutionizing linguistics, the rest of social science was asleep.
    Temporal Clause: Kensington was revolutionizing linguistics.
  • Since Kennedy died, we’ve lacked a leader.
    Temporal Clause: Kennedy died.

Further temporal clause constructors: after; during; whenever; as (as in As Tom was getting up, he slipped).