Share Photo: (Photo : Pixabay/iqbalnuril) Everyone in the family is fascinated that your youngest could now communicate with them. However, you suddenly notice your toddler saying "no" all the time. It might sound funny at first, but in the long run, you will learn that it does not work well with your child's growth and the relationship you have. George Mason University developmental psychology professor Susanne Denham explained that when toddlers learn to say "no," they simply learn that they have will. While this phase will end soon, here are ways you could do to stop your toddler from saying "no" all the time.