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Once we've done that we will start again.

May Once we've done that be interpreted as a future event in the sentence above?

Is Once a subordinator in Once we've done that?

Comments  

Say, you're listening to a person say this in present time. You and the speaker could be presently engaged in doing "that." And when the two of you have completed doing "that," you will do it again. So here we're talking about a present event.


Alternately, you and the speaker have not yet started doing "that," in present time. But the two of you will soon start doing it. And when you've completed doing "that," you will do it again. So here we're talking about a future event.

Thank you for the reply.