Perfect progressive aspect

Perfect progressive aspect

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We use the perfect progressive aspect to talk about an action that was once ongoing, but has since completed, like "I had been waiting for twenty minutes."

ARIADNE Info
Source url:
https://cdn.kastatic.org/KA-youtube-converted/UORrFsnRCr8.mp4/UORrFsnRCr8.mp4
ARIADNE ID:
up2u_KHAN_ACADEMY_x10426676
ARIADNE provider:
KHAN_ACADEMY
ARIADNE repository:
K12
ARIADNE license:
Creative Commons Attribution/Non-Commercial/Share-Alike


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