英语中表示时间的词组有哪些？

just at that moment =just then刚刚

right away=at once =soon立刻

at the moment=now=right now现在

ahead of time 提前

behide time晚点

for some time 有段时间

at the time 当时

at one time曾经有时候

by now =so far到现在为止

by the end of在．．．．末

in the past在过去