9-12 Months	Begins to relate names of objects/family names	Articulates most speech sounds in babble sequences
12-18 Months	Uses greetings (hi/bye). Uses sentence-like intonation (jargon).	Uses 3-20 single words. Responds vocally to ”WH” questions.	Points to wanted objects. Imitates some words	Points to an object when named.
18-24 Months	Understands approx. 300 words. Uses commands and reactions ”more” ”mine” ”owee”	Says 50 words. Responds to yes/no questions with head gestures	Combines words to make 2-word sentences. Mean length of Utterance (MLU) = 1.8	Names familiar objects
24-30 Months	Understands approx. 500 words. Uses some regular plurals	Follows simple directions. Answers ”What” & ”Where” questions	Follows a series of related command. MLU = 3.1	Says 200 words
30-36 Months	Understands approx. 900 words. Uses pronouns ”I”, ”me” , ”you” and ”mine”	Knows 3rd personal pronouns (he/she). Asks simple ”What?” & ”Where?”	Says 500 words including ”please” ”thank-you”. MLU = 3.4	Articulates /p /, /m/, /w/, /n/ & / h/ sounds
36-42 Months	Understands approx. 1200 words. Begins to ask varied questions	Responds to 2 unrelated commands. MLU = 4.3	Knows ”in front” & ”behind”	Says 800 words
42-48 Months	Understands approx. 1500 – 2000 words	Says 1000 words	Articulates /b/, /d /, /k/, /g/, /f /, /y/	MLU= 4.4
48-54 Months	Understands approx. 2000-2500 words. Understands spatial concepts.	Says 1500 words MLU = 4.6	Uses irregular plurals	Uses possessives
54-60 Months	Understands approx. 2500-2800 words. MLU= 5.7	Says 2000 approx. words	Uses complete sentences	Misarticulates few blends
60-72 Months	Understands approx. 13,000 words	Understands time concepts	Uses pronouns consistently	MLU = 6.6
72-84 Months	Is aware of others’ mistakes!!	MLU = 7.3