ill-treat (?l?tr?t?)tr.v. ill-treat·ed, ill-treat·ing, ill-treats To treat unkindly or harshly. See Synonyms at abuse.ill?-treat?ment n.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.ill-treat vb (tr) to behave cruelly or harshly towards; misuse; maltreat ?ill-?treatment nCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014ill?-treat? v.t. to treat badly; maltreat; abuse. [1695?1705] ill?-treat?ment, n. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.ill-treatPast participle: ill-treatedGerund: ill-treatingImperativePresentPreteritePresent ContinuousPresent PerfectPast ContinuousPast PerfectFutureFuture PerfectFuture ContinuousPresent Perfect ContinuousFuture Perfect ContinuousPast Perfect ContinuousConditionalPast ConditionalImperativeill-treatill-treatPresentI ill-treatyou ill-treathe/she/it ill-treatswe ill-treatyou ill-treatthey ill-treatPreteriteI ill-treatedyou ill-treatedhe/she/it ill-treatedwe ill-treatedyou ill-treatedthey ill-treatedPresent ContinuousI am ill-treatingyou are ill-treatinghe/she/it is ill-treatingwe are ill-treatingyou are ill-treatingthey are ill-treatingPresent PerfectI have ill-treatedyou have ill-treatedhe/she/it has ill-treatedwe have ill-treatedyou have ill-treatedthey have ill-treatedPast ContinuousI was ill-treatingyou were ill-treatinghe/she/it was ill-treatingwe were ill-treatingyou were ill-treatingthey were ill-treatingPast PerfectI had ill-treatedyou had ill-treatedhe/she/it had ill-treatedwe had ill-treatedyou had ill-treatedthey had ill-treatedFutureI will ill-treatyou will ill-treathe/she/it will ill-treatwe will ill-treatyou will ill-treatthey will ill-treatFuture PerfectI will have ill-treatedyou will have ill-treatedhe/she/it will have ill-treatedwe will have ill-treatedyou will have ill-treatedthey will have ill-treatedFuture ContinuousI will be ill-treatingyou will be ill-treatinghe/she/it will be ill-treatingwe will be ill-treatingyou will be ill-treatingthey will be ill-treatingPresent Perfect ContinuousI have been ill-treatingyou have been ill-treatinghe/she/it has been ill-treatingwe have been ill-treatingyou have been ill-treatingthey have been ill-treatingFuture Perfect ContinuousI will have been ill-treatingyou will have been ill-treatinghe/she/it will have been ill-treatingwe will have been ill-treatingyou will have been ill-treatingthey will have been ill-treatingPast Perfect ContinuousI had been ill-treatingyou had been ill-treatinghe/she/it had been ill-treatingwe had been ill-treatingyou had been ill-treatingthey had been ill-treatingConditionalI would ill-treatyou would ill-treathe/she/it would ill-treatwe would ill-treatyou would ill-treatthey would ill-treatPast ConditionalI would have ill-treatedyou would have ill-treatedhe/she/it would have ill-treatedwe would have ill-treatedyou would have ill-treatedthey would have ill-treatedCollins English Verb Tables © HarperCollins Publishers 2011