Sometimes present perfect continuous and present continuous have essentially the same meaning. I have been writing a book. ) I am writing a book.
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AlpheccaStarsSometimes present perfect continuous and present continuous have essentially the same meaning.I have been writing a book. (This stresses that you started the book some time ago, and the book is not complete.)I am writing a book. (This is just a present time activity.)thanks
PhilipKeep in mind that tense is really just the grammatical word for time. Since there are basically only three periods of time (past, present and future), we will find that the uses of the various tenses depend on the situation.Simple past: Yesterday I finished the book I borrowed from you.Present perfect: I have seen that movie three times. (not used with a specific tim