The activity has begun in the past and will be completed in the future example she is preparing chicken sandwiches for breakfast present perfect tense this tense is used to describe an action that had begun in the past continues into the present and has just been completed the time of occurrence of the action is generally not mentioned. The past present and future of learning posted on october 19 2015 by admin when audiences first watched the movie back to the future they journeyed from the then present day of 1985 to the future of 21 october 2015. There are times in our lives when we have to realize our past is precisely what it is and we cannot change it but we can change the story we tell ourselves about it and by doing that we can change the future
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