start
1.start（动身）往往用现在时态或现在进行时态代将来时态，如I start tomorrow或I am starting tomorrow作I shall start tomorrow解。
2.I shall start for Shanghai tomorrow等句子里通常用for，很少用to。He started from the city yesterday等句子里用from，不用at。
3.start in和start out都作“开始”解（等于start），都是不及物动词，都有口语性质，都在美国比在英国普通。例如：He started（in或out）on the task at once. 和We'll start（in或out）by washing the floors.
4.下面五句意思相仿：
- I shall soon start doing it.
- I shall soon start to do it.
- I shall soon start in to do it.
- I shall soon start out to do it.
- I shall soon start in doing it.
第一句比第二句正式。第三句有口语性质，在美国比在英国普通。第四句也有口语性质，也在美国比在英国普通，用在长久的事，不用在一时的事，如可以说I shall start out to study German next month，不可说I shall start out to prepare a lesson in German at eight o'clock。第五句是美国英语。
就语法讲，start doing里的start被当作不及物动词或及物动词，doing被当作现在分词或动名词，都可以。start to do里的start是不及物动词，start in里的in是副词，start in doing里的doing是现在分词。
5.He got started in business with his uncle's help和Somehow I got started collecting stamps里的got started属于被动语态。
6.at the start和from the start的区别，相当于at the beginning和from the beginning的区别，参见beginning 1
