have been mystifying
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present perfect progressiveof mystify.present perfect progressive
Used to describe an action that began in the past, has continued continuously, and is still in progress.
mystifyverb (used with object)to perplex, puzzle, or baffle; defy the understanding of.
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.
Ten years ago, when a taco in London might easily have contained canned baked beans, the idea of a Mexican restaurant in a posh hotel would have been mystifying.
From New York Times ● May 16, 2017
Oh, Harry, if you have been mystifying me, I hope you will never do it again.
From Blind Love by Wilkie Collins
The ambiguity of this might have been mystifying to 282 any but a drowning man ready to clutch at a straw.
From Those Dale Girls by Frank Weston Carruth