has been suppling

• 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 supple (3rd person singular).
  supple

  adjective

  bending readily without breaking or becoming deformed; pliant; flexible.

Related Words

• agile
• elastic
• flexible
• graceful
• limber
• lithe
• malleable
• pliable
• pliant
• resilient
• springy
• svelte
• wiry