Brown stages

Question 1

Stage I

Answer 1

Age: 15-30mos
MLUmean-1175
MlU-rang: 1.5-2.0
Morphologicdal structure: stage I sentence types 
examples: 
Nomination (that doggie) 
•Negation (no juice) 
•Recurrence (more cookie) 
•Possession (my baby) 
•Attribution (big ball) 
•Locative (cup table) 
•Agent-action (mommy sit) 
•Action-object (hit ball) 
•Agent-object (daddy truck)

Question 2

Stage II

Answer 2

Age: 28-36mos
MeanMLU:2.25
MLUrange:2.0-2.5
morphological strucutre: 
1) Present progressive (-ing endings on verbs)
--it going, falling off
2) in
in box, pussy in
3) on
-on tree, birdie on head
4) -s plurals (regular plurals)
-my cars, two ties

Question 3

Stage III

Answer 3

Age: 36-42mos
MeanMLU:2.75
MLUrange:2.5-3.0
morph structure:
5) Irregular past tense
-me fell down
6) -s possessives
-doggie's bone, mummy's hat  
7) Uncontractible copula (the full form of the verb 'to be' when it is the only verb in a sentence
-Are they there? Is it Alison?

Question 4

Stage IV

Answer 4

age:40-46mos
MeanMLU:3.50
MLUrange:3.0-3.7
morph structure: 
8) Articles
-a book, the book
9) Regular past tense (-ed endings on verbs)
-she jumped, he laughed
10) Third person regular present tense
-he swims, man brings

Question 5

Stage V

Answer 5

Age:42-52+
MeanMLU:4.00
MLUrange:3.7-4.5
morph structure:
11) Third person irregular
-she has, he does
12) Uncontractible auxiliary (the full form of the verb 'to be' when it is an auxiliary verb in a sentence)
-Are they swimming?
13) Contractible copula
(the shortened form of the verb 'to be' when it is the only verb in a sentence
-She's ready. They're here.
14) Contractible auxiliary
(the shortened form of the verb 'to be' when it is an auxiliary verb in a sentence)
-They're coming. He's going.