✔ 最佳答案
always
頻率: 每天/ 差不多每天/ 永恆發生的
e.g Sun always rise at east.
often~sometimes
頻率: 偶爾, 不是經常, 不是每天, 不是常生的習慣
e.g i often go to school by bus, as i like on foot.
i sometime go to school by bus sometime.
seldom
頻率:不常,很少;難得
r.g.She seldom showed her feelings.
never
頻率:永不發生
e.g it too boring, i never go it again.
通常此句要用 present tense
因是永不發生的常規