动词不定式短语to learn English在To learn English,······中to learn English为何放于句首

动词不定式短语to learn English在To learn English,······中to learn English为何放于句首 English is difficult to learn动词不定式走什么成分 初中语法动词不定式作表语及动名词短语做表语有何区别.请举例.例如:One important way to learn English well is to read aloud.为什么to read 不用reading动名词短语.具体有何区别? regret to do want to do这类动词后加to do的 是动词短语 还是动词不定式短语 动词不定式短语非谓语动词是怎么回事 Everyone is born with the ability to learn.to learn是动词不定式吗,它在句中什么成分? 介词结构on 可以疑问词带to的不定式动词decide,know,learn,show,teach,tell...,介词结构on...可用疑问词带to的不定式短语作宾语,但why后面的不定式不带to.请高手举几个例子. We start to learn.这句话中的宾语是什么?动词不定式可以做宾语? to help them remember这句不定式短语构成：to+动词+宾语+宾语补语? 动词不定式是什么?介词短语又是什么? 后接动词不定式的短语 什么是不定式短语和谓语动词 含有动词不定式的句子或短语 请问1,所有有to do的短语都是动词不定式吗?如decide to do.2,动词不定式一定是 to do形式吗? He is going to learn( )the guitar,是 learn to play 还是 learn doing?一般将来时态后面是跟动词不定式还是动名词? I have to go to the Children's Palace to learn the piano是动词不定式作后置定语吗? 英语小题 关于动词不定式和动名词根据动词正确形式填空：——English is not easy .（learn）为什么?In detail!To learn 动词不定式不加to