这3个动词是啥!1.to be present at an event;to go regularly to a place 2.to suggest a plan,proposal etc.for other people to consider or discuss 3.to have a clear meaning and be easy to understand

这3个动词是啥!1.to be present at an event;to go regularly to a place 2.to suggest a plan,proposal etc.for other people to consider or discuss 3.to have a clear meaning and be easy to understand to believe 还是 to be believe 为什么还有个be to do believe 是动词 为什么还加be be 动词是个瞬间动词还是持续动词 to be living 是名词 还是动词 used to be是系动词吗! be able to中be是be动词还是实意动词 英语时态问题:一般将来时1.The Fifth-Ring Road is to be opened to the traffic next month.be opened是被动语态吗?这句子结构be+to+be+过去分词表示将来发生的2.be to+动词原形和be about to+动词原型都表示将来吗? to是介词为什么be going to是情态动词 英语系动词的问题感官系动词很多如seem appear 等他们后面一般接动词不定式如：he appeared to be very young这里的be是be动词的原型be动词也是系统词那么1个句子有2个系动词应该怎么理解? 我有个英语问题搞不懂~关于感官动词在 动词不定式 中 被动 的写法比如说 smell 被动 是写成 to be smelt 还是 to smelt to 是情态动词吗 因为后面总是 to be 动词不定式到底是to be还是to? 关于be able to do will you be able to come to a meeting next week?will是be 动词.为什么要多+个be 难到不是 will you able to come to a meeting next week? 系动词短语有 be to do和be going to be to do是情态动词短语吗 have pres-sale experience意思是 不定式作为句子成分时,动词用单数形式 .It+be+形容词+for sb+to do.It+be+名词+for sb+to do这2个句子不管sd是单还是复数,to do 这个DO都用单数是这个意思么?还有什么时候to do 这个动词DO是复数的?当TO 主语 to be 动词ing的问题1.书本上写进行时是主语to be ing那么to是啥意思这里.xiao ming is making a plan.这句话的to 在哪里?2.常常看到书本上写着短句to go to school,to have lunch,to do work.可是平常在句子 动词+名词+to不定式+动词,那么Be动词+名词+动词也要加to不定式吗?（be动词+名词+to不定式+动词）那么动词+名词+to+动词这种表示是对的吗