Used to suggest or state tentatively that something may be the case (often the opposite of something previously implied).
Used in questions when the speaker does not know for sure if the listener will have an answer.
Used to contradict an assertion.
Next in order of place.
At that time.
In addition; also; besides.
At the same time; on the other hand.
In that case.
Soon afterward.
Being so at that time.
That time