Question

have you been to后面地点之后可以加时间吗?

Answer 1

可加,如recently

完成时时间状语分两类.

1.迄今为止已发生,（不是具体时间） 如 just recently

2.发生了一段时间 可用 for since 且 since 后可跟时间短语,如since last week 还可跟从句 如since i arrived to Bj. 但for 后只能跟 短语 如for two years.