Productivity and constraints in the acquisition of the passive.
Pinker
S
S
Lebeaux
D S
DS
Frost
L A
LA
D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007804:Language Development / Q000502:physiology*; D008297:Male; D014706:Verbal Learning / Q000502:physiology*