Read Revelation 17:11 Using Other Translations
And the beast that was, and is not, even he is the eighth, and is of the seven, and goeth into perdition.
As for the beast that was and is not, it is an eighth but it belongs to the seven, and it goes to destruction.
“The scarlet beast that was, but is no longer, is the eighth king. He is like the other seven, and he, too, is headed for destruction.