Mlu Chart 4x1sz

Brown's Stages ("Brown's Morphemes") I to IV Brown's Stage Stage I Stage II 1 2 3 4 Stage III 5 6 7

Age in Months 12-26 27-30

Mean MLUm 1.75 2.25

31-34

2.75

Stage IV 8 9 10

35-40

3.5

Stage V 11 12

41-46+ 4.0

13

14

MLUm Morphological Examples Range Structure ______________________________ 1.0-2.0 Stage I Sentence Types see above 2.00-2.5 Present progressive (-ing) it going in in box on on box s-plurals (regular plurals) my cars 2.5-3.0 Irregular past tense me fell down 's possessive man's book Uncontractible copula (the Is it Alison? full form of the verb to be Yes, it is. when it is the only verb in Was it Alison? a sentence) Yes, it was. 3.0-3.75 Articles A ball on the book. Regular past tense She jumped. Third person regular, The puppy chews it. present tense Jason likes you. 3.75-4.5 Third person irregular She does. He has. Uncontractible auxiliary Are they swimming? (the full form of the verb 'to Were you hungry? be' when it is an auxiliary I'm not laughing; she is. verb in a sentence) She was laughing; not me. Contractible copula (the She's ready. shortened form of the verb They're here. 'to be' when it is the only Daddy's got tomatoes. verb in a sentence) My dog's lost his collar. Contractible auxiliary (the They're coming. shortened form of the verb He's going. 'to be' when it is an I'm opening it up. auxiliary verb in a We're hiding. sentence) It's freezing.

Reference Brown, R. (1973). A first language: The early stages. London: George Allen & Unwin.