请分析两句话的语法?I have been there twice.I have learned English for three years.第一句的twice是什么用法?为什么第二句用吧FOR?I have done that for three times这句话对吗?

请分析两句话的语法?I have been there twice.I have learned English for three years.第一句的twice是什么用法?为什么第二句用吧FOR?I have done that for three times这句话对吗? I think the best chance for us to be great here taday is to have you paly.请帮忙分析下这句话的语法 语法结构问题 I have been blessed to have in my life这句话什么结构?不好理解,请尽量详细分析之, how long did you skate?--I skated for two years.请帮忙分析一下此句话的语法I skated for two years.I have skated for five years两句有什么区分 i have long since abandoned the notion谁能给我分析这句话的语法,特别i have long这三个词,牛人帮下忙 请分析这句英语的语法The cave might never have been discovered had not the entrance been spotted by the distinguished French potholer,Berger请分析这句话的语法,中文意思我知道,关键是什么语法结构. 帮忙分析一个句子的语法no way could i have sent her away 这句话里面用的是什么语法 I would be grateful if you could give me some advice请把这句话的语法结构分析一下 I lived in it请帮我翻一下,再帮我分析下这句话的语法 It is the third time that i have been in Beijing.帮忙分析下这句话的语法结构和时态,为什么用have been 请教这句话的语法The announcement may cause jitters about the impact tightening will have on Chinese growth.　　请各位大大分析下这半句话的语法,“about the impact tightening will have on Chinese growth”作什么成分,这半 I would have him wait for me.请问这句话是什么意思?would have sb do sth?分析下语法谢谢. Who shall I say is phoning?这句话语法有错么?请分析 英语时间介词问题请问,这两句话：我下周三放假,我下周三没时间.I will have a holiday next Wednesday.I won't bee free next Wednesday.这两个时间需要加介词吗? 谁能帮我分析下这个英语句子?How good it will be when I also have one.我也不懂分析什么,就是看不懂这句话的意思,大家能不能在结构上和语法上分析一下呢? 请分析它所包括的语法和解析拜托了选择：You have made great progress in French,haven't you?【 】,and【 】A So i have,so have youBso have i,so you have Cso have i,so have youDso i have,so you have 请帮忙分析下这句话的语法是否有问题 Maybe!I really should go to see a psychologist.这句话的语法总觉得别扭.是不有chinglish之嫌. I meet my friends and we always have a great time talking to each other.请帮忙分析下句子的语法