Hi @Olegst, I'm not entirely sure I understand what you mean by 'freeze' water, but I am guessing you want to achieve the effect of moving water like this:

Google Images

If so then you need a longer exposure time. The exposure time will depend on how fast the water is moving and the lighting conditions of the area. A tripod is a must, and if the light is not too bright you can probably set your camera to f/22 or even higher, iso 100 and then adjust the exposure time.

Alternatively you can try an ND filter. There are several options, 2 stop, 4 stop, 8 stop, 10 stop and more. This filter will partially block the light from entering your camera so that you need to expose for longer, allowing for that flowing water look.