William O'Grady is professor of linguistics at the University of Hawai'i at Manoa. He is the author of Principles of Grammar and Learning, also published by the University of Chicago Press, and coauthor of Contemporary Linguistics: An Introduction. The University of Chicago Press, Chicago 60637 The University of Chicago Press, Ltd., London © 1997 by The University of Chicago All rights reserved. Published 1997 Printed in the United States of America 06 05 04 03 02 01 00 99 98 97 5 4 3 2 1 ISBN (cloth): 0-226-62075-1 ISBN (paper): 0-226-62077-8 Library of Congress Cataloging-in-Publication Data O'Grady William D. ( William Delaney), 1952- Syntactic development / William O'Grady. p. cm. Includes bibliographical references. ISBN 0-226-62075-1.--ISBN 0-226-62077-8 (pbk.) 1. Language acquisition. 2. Grammar, Comparative and general-- Syntax. 3. English language--Acquistition. I. Title. P118.027 1997 401'.93--dc21 96-46257 CIP ∞ ⃝ The paper used in this publication meets the minimum requirements of the American National Standard for Information Sciences--Permanence of Paper for Printed Library Materials, ANSI Z39.48-1984. -iv- |