sb have been training sb have been trained 哪个对?

sb have been training sb have been trained 哪个对? have sb done和have been doing有么? have sb 用sb/sth is said to have done/to have been done 个造个句子 have been to 与was sb at两者的区别v? the buildings have been designed by sb.the buildings不是第三人称么,怎么不用has It is never too late to be what you might have been sb. 英文邮件中的input什么意思..收到邮件：Since sb have been seen him day to day,I'd like to have sb's input.. have been have been have been have been sb. is said to do和sb. is said have done什么区别举下例还有什么类似的形式吗,像sb. is said to have been doing 如果有 分别是什么意思? 请问have sb.to do ,have sb.done,have sb.do,have sb.doing 的区别 have guns with sb have sth for sb have meaning to sb you have left sb