i need to reduce the size of an image then sharpen t the typical "image size" works to resize but the sharpening in the mode doesn't help much
The reason why a couple of dozen people have viewed your inquiry and not offered help is probably because your description of the problem is confusing and vague. It seems that you are able to change the the size of the image by choosing Image > Image Size and making the appropriate adjustments. Good.
Various Image Sharpening options and controls, on the other hand, may be found under Filter > Sharpen.
And what does "in the mode" refer to? As a first step in solving the problem, I suggest you carefully reword your inquiry.