They后面跟do not 还是are not?

They后面跟do not 还是are not? they do not enjoy还是they are not enjoying? not allow后面跟to do还是怎样 英语名词复数后面跟do not还是does not 如cakes ?后面用.? they do not doing their homework为什么不对呀?我看新概念上面说是 they are not ding their homework.不是说BE动词后面不能跟动词吗?DO不是动词吗? there are 后面跟doing还是to doto do比如说there are sb.{ doing I do not know how to express my feelings后面跟“for you 还是”to you? Are they English还是Do they English Do they angry?还是Are they angry? please后面跟doing还是do family后面跟is还是are呢 How much后面跟is还是are? The students 后面跟is 还是are Why not 后面+doing 还是to do? Teenages are sometimes made to do what they are not interested in请问what是什么意思 为什么可以放do后面 what可以换something 或that吗 They said the eightteenth and last lesson.quite easy.the eightteenth and last lesson 后面跟 is 还是 are 为什么? how about后面跟什么(do还是to do） What beautiful clothes 后面填什么?are they还是What beautiful clothes 后面填什么?are they还是they are?