not all students have a regular breakfast部分否定是什么意思?什么语法

All of us are not students –Are you satisfied with the result of the exam?–Not at all.I can’t hav Not all the students like English=()students()English.Some students()like English All the students do not hold the same opinion not,students,the,school,all,bus,to,take连词成语 Not all the students are here同义句 not,students,the,school,all,bus,to,take连词成语 英语翻译是Not all students like English还是Don't all students like English还是Not all of students like English The students _____ at school todayA.all are B.are all C.all D.are not Some students thinks that studying English grammar is not helpful___A.not at all B.all C.very D.at all ____do their homework carefullya.no all the students b.not all the students c.none the students d.not every student 为什么选B 为什么选这个 not all the students found it easy to smile all the time.怎么翻译?急用, not all ,not all of 意思上一样吗?1 我知道not all .,all.not...资料上写的是,部分否定的意思,请问not all students,not all of the students 汉语意思上是一样的吧?2 All of us are not happy 和 Not all of us are happy 这两 not all students take a bus to school,这句话not前为什么不加do? not all students take the bus to school not all的意思是我没有隔开 是 not all的意思是？ 在not all students take the bus to school 中 We are all students 否定式 1 We are all students / We all are students 是否都成立呢?2 We are all students 否定式 准确的是?we are not all students / we are all not studentsnot 否定 应该放在 系动词 are 后面,还是放在 all ---in out class are listening to the teacher carefully（a.Not all students b.Not all the students 定冠词the什么时候用,什么时候不用啊? Not all the students are fond of music.否定词放句首,句子为什么不倒装?