Unit16TheUnitedStatesofAmericaReadingTheAmericansouth形式动词不定式动名词/现在分词时态主动被动主动被动一般时进行时完成时完成进行时todotobedonetobedoingtohavedonetohavebeendonetohavebeendoingdoinghavingdonebeingdonehavingbeendone动词的各种时态过去现在将来1,过去一般时1,现在一般时1,将来一般时2,过去进行时2,现在进行时2,将来进行时3,过去完成时3,现在完成时3,将来完成时4,过去将来一般时4,现在完成进行时4,将来完成进行时5,过去将来进行时6,过去将来完成时7,过去完成进行时8,过去将来完成进行时diddo/doeswilldowas/weredoingam/is/aredoingwillbedoinghaddonehas/havedonewillhavedonehas/havebeendoingwillhavebeendoingwoulddowouldbedoingwouldhavedonehadbeendoingwouldhavebeendoingtheNativeAmericatheindependentWarofAmericatheCivilWartheGreatDepressiontheCivilRightsMoment“IHaveADream”“GoneWithTheWind”“theDeclarationofIndependence”GeorgeWashingtonAbrahamLincolnIndianReservationEconomiccrisisNon-violentdemonstrationUnemploymentpains,scars,wounds,suffering,hardshipsTh