I always considered the form て＋いる as the expression of an ongoing action, but
recently I read an article that it can be read as succession of the て form
verb and the verb いる. Then, 'もう、家に帰っている。' would not mean 'I am already coming
back to my house'. It would mean 'I am already home (I've gone home and I am
waiting there now)'. Is it true? When do I know which translation should I
use? Are there any possible translations? How I use them?

Thanks in advance.
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2017-02-25T12:25:23.373
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2017-02-25T12:25:23.373
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question
grammar translation て-form
What does 'もう、家に帰っている。' mean?