Your child may be using only the most basic words, or he may be stringing together sentences already. Both are normal at this age. First sentences tend to be brief, but they get the point across and are exciting to hear. Help your child internalize sentence structure by repeating his words in full sentences. When he says, "Mommy! Shoes! Me!" you can echo back, "Oh, you want me to help you put your shoes on? Okay, come here!"
А я и не переживаю, что Лиз толком не говорит. Каждый ребенок индивидуален.