were preconditioning

• past progressive

  past progressive

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

  of precondition.
  precondition

  noun

  something that must come before or is necessary to a subsequent result; condition.

Related Words

• arrangement
• essential
• necessity
• prerequisite
• provision
• qualification
• requirement
• requisite
• stipulation