Many dogs do not enjoy being bathed their baths. Though If they are bathed from the time they are puppies, they will usually become accustomed to it and not put up a fuss.
If a dog dislikes the bathing regimen, one can try increasing the security of footing in the tub, perhaps using a rubber doormat underfoot to provide a solid grip. Avoidance of hissing-type spray nozzles can help them calm down as well. Use of an open hose to drizzle a slow warm water flow over the dog may be much more soothing. Taking care that the water is never too warm nor cold will also increase comfort. Provision of praise and treats when he stands quietly will help to reinforce good behavior. It is important that soap does not get into the mouth or eyes, or water get into the ears since this is not comfortable and may increase the dog's dislike of bath time.