have been mumbling
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present perfect progressiveof mumble.present perfect progressive
Used to describe an action that began in the past, has continued continuously, and is still in progress.
mumbleverb (used without object)to speak in a low indistinct manner, almost to an unintelligible extent; mutter.
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.
After that, I may not have been mumbling the right thing, but I was mumbling.
From "The Autobiography of Malcolm X" by Alex Malcolm X;Hailey
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For, however Jim's soul may have been mumbling, "Help, help!" he made no audible sound.
From We Can't Have Everything by Rupert Hughes