By the age of 4½-5 years, almost ev

By the age of 4½-5 years, almost every word your child says can be understood by strangers. He might still have difficulty using some speech sounds – for example, saying ‘fing’ for ‘thing’ or ‘den’ for ‘then’ – and might mispronounce some complex words, such as ‘ambulance’ and ‘spaghetti’