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口袋英语 第三讲：Be动词的否定/提问/回答（上）
口袋英语 Packet英语语法
口袋英语 Packet英语语法2/44
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App07:07![口袋英语 第二十五讲：[情态动词（2）]should ought to must](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/b62c9f2a478e4224999db4519e3fa276~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250215094650117BBD23D7176DD98EBA&requestFrom=704&version_code=80402&x-expires=1771120011&x-signature=Rtdfe5l4%2BO1yWB4r9nKUuj2QNes%3D)
App06:24![口袋英语 第二十六讲：[情态动词（3）]need don't have to](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/13277f6dc1c84a2e8730ecbc0e95361b~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250215094650117BBD23D7176DD98EBA&requestFrom=704&version_code=80402&x-expires=1771120011&x-signature=UOEFL2gm7YtUsALIz4Q%2BCL3iG%2BY%3D)
App09:06![口袋英语 第二十八讲：[情态动词（5）]used to+v would+v](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/baaa8167f62d45e082c20bb65482626e~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250215094650117BBD23D7176DD98EBA&requestFrom=704&version_code=80402&x-expires=1771120011&x-signature=16j%2BmHcWK4yBoFkuoCFWCI3wL1A%3D)
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App12:23![口袋英语 第三十二讲：[被动语态（2）]被动态和情态动词结合](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/74a3b6fd3b80499089e987397f3fbc94~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250215094650117BBD23D7176DD98EBA&requestFrom=704&version_code=80402&x-expires=1771120011&x-signature=2yQB27vp%2FWpbzU1EifK%2Fji%2B6tX8%3D)
App06:11![口袋英语 第三十五讲：[非谓语动词（1）]to+动词vs动词+ing](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/9c30db29336247fbb184dcd81c43d356~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250215094650117BBD23D7176DD98EBA&requestFrom=704&version_code=80402&x-expires=1771120011&x-signature=YaVKnslMnT8sYfpHvk46NEGfVFI%3D)
App13:32![口袋英语 第三十六讲：[非谓语动词（2）]假主语/真主语](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/8d7759481ebc4d7396aac77f595e70e0~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250215094650117BBD23D7176DD98EBA&requestFrom=704&version_code=80402&x-expires=1771120011&x-signature=0G30hSOIiw3vcAPcOr4dp%2Bpu7ok%3D)
App08:43![口袋英语 第三十八讲：[非谓语动词（4）]常见不定式和动名词句型](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/e4ef660ecc644fe781b3eb9d179d55b7~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250215094650117BBD23D7176DD98EBA&requestFrom=704&version_code=80402&x-expires=1771120011&x-signature=ijPXY1RvA70RETTVbUfjpTa09IY%3D)
App08:29![口袋英语 第四十讲：[原形不定式（1）]使役动词](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/d1672f2b59d5403dac4aba6cb51005f0~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250215094650117BBD23D7176DD98EBA&requestFrom=704&version_code=80402&x-expires=1771120011&x-signature=AeN3gHAdGHLa1ghfSQVtRMwAyQ8%3D)
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