have been here 和have come here 的区别

have been here 和have come here 的区别 You have been here,的have come over和come here 的区别 why have you been here? 改错:Someone have been here how long have you been here 和 how long have you stayed here I have worked here for 2 years.和I have been working here for I have never been here.I haven't been here. come here和go here区别用法 have been here 后面可不可以用since how many have you been here i have been here ( )a year.