has been patterning

• present perfect progressive

  present perfect progressive

  Used to describe an action that began in the past, has continued continuously, and is still in progress.

  of pattern (3rd person singular).
  pattern

  noun

  a decorative design, as for wallpaper, china, or textile fabrics, etc.

Related Words

• kind
• method
• sequence
• shape
• sort
• style
• system
• type
• variety