Hard to understand compared to other children their age
Sound substitutions (e.g., “wabbit” for “rabbit,” “tat” for “cat”)
Leaving off sounds at the beginning or end of words
Distorted sounds like a slushy or whistled /s/
Difficulty with specific sounds such as /r/, /s/, /l/, /th/, or blends
Inconsistent speech errors that change each time they say a word
Frustration when trying to speak or being misunderstood