What should your child be doing by the time they are 5?  Their understanding of the world is much more consistent along with their ability to express themselves more clearly.  You may notice some dysfluent moments when they speak but don't worry yet.  Know and understand the difference between typical developmental disfluencies vs. what is not typical so you can seek help when needed. Be aware of how to support your child's development and when to seek professional advice/intervention.