Relier Pairs Brown’s MLU stagesVersion en ligne Test yourself on Brown’s research on morphological acquisition by matching pairs of morphemes with the month age of mastery. par Som Person 1 Regular plural 2 Possessive ‘s’ 3 Regular third person 4 Present progressive 5 Regular past 6 Irregular past 26-40 19-28 25-46 27-33 26-48 28-50 1 Late II 2 Late III 3 Early II 4 Early III 5 Late I 6 Early I 22-26 31-32 27-28 12-22 33-34 28-30
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