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 Regular third person 3 Irregular past 4 Possessive ‘s’ 5 Regular past 6 Present progressive 28-50 27-33 25-46 26-40 26-48 19-28 1 Late II 2 Late I 3 Late III 4 Early II 5 Early III 6 Early I 31-32 12-22 22-26 28-30 27-28 33-34
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