常用的表示时间关系的标志词包括：

1. 时间点：at, on, in

2. 时间段：for, during, over

3. 先后顺序：before, after, then, next, last

4. 频率：always, usually, often, sometimes, rarely, never

5. 过去、现在、将来：ago, now, today, yesterday, tomorrow, tonight, this week/month/year, last week/month/year, next week/month/year

6. 延续性：since, from, to, till, until

7. 程度：almost, nearly, just, already, yet, still

8. 比较：earlier, later, sooner, more, less

9. 转折：meanwhile, meanwhile, however, nevertheless, still, yet

10. 接续：and, then, finally, eventually, afterwards, subsequently