piggyback
adverb
on the back or shoulders.
has been piggybacking
-
present perfect progressiveof piggyback (3rd person singular).present perfect progressive
Used to describe an action that began in the past, has continued continuously, and is still in progress.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The New Haven has been piggybacking since 1937, now carries more than 50,000 trailers a year and grosses $2,000,000 on the service.
From Time Magazine Archive
