000			00786nam a2200193 a 4500
001			428
003			20060918 00:00:00
008			260616s1988 USA 000 0 Ing d
040			_aCO-CaBJM
082			_a420.531 _bW451ch
100			_aWilcox Peterson, Patricia
245			_aChanging times, changing tenses
260			_aWashington : _bBureau of Educational and Cultural Affairs, _c1988.
300			_a155 p.
505			_aThe present tense -- The present continuous tense -- The present perfect tenses -- The past tense -- The past habitual tenses -- The past continuous tense -- The past perfect tenses -- The future tenses -- The future continuous tense -- The future perfect tenses.
650			_aGramática inglés
650			_aTiempos verbales en inglés
942			_2ddc _cBK
999			_c357 _d357