现在完成时中have后的哪些动词需要注意特别使用?如have been here for long time

现在完成时中have后的哪些动词需要注意特别使用?如have been here for long time Have you been here for a long time? i have been here for a long time 现在完成时How long后.加持续性还是瞬间性动词,如How long have you（ ）here?是填lived I have been here since 1976 这里的have 是实意动词吗?那么在现在完成时中是不是没有助动词 We have been waiting here a long time for the guest. It takes a long time to get there和I have been here for a lon 有since,for的现在完成时句子中的动词必须是延续性的吗?如I have lived here since then "i have been for a long time"中,"have" 为什么不用"had"? 现在完成时的have been l have been looking for someone for a long time I have been chasing for a long time