Take (someone) for a fool phrase
To think, believe that someone lacks intelligence.
You think that I can be cheated so easily, don't you? You must be taking me for a fool!
Those having taken me for a fool were all in awe after I solved that puzzle.
The king mistakenly took his servant for a fool and got dethroned by that servant.
The verb "take" must be conjugated according to its tense.
The origin of this phrase is not clear.
Be very nearly or inevitably lost, departed or deceased
He is in terminal cancer so I’m afraid he is as good as gone.