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Model: Have you been staying here long? (for a month)

I have been staying here for a month.

Has he been talking about his plan long? (all these days)
Have children been swimming long? (for half an hour)
Has it been raining long? (for a week)
Have you been translating the article long? (for three hours)

Has he been talking about his plan long?He has been talking about his plan all these days.Have children been swimming long? Children have been swimming for half an hour.Has it been raining long? It has been raining for a week.Have you been translating the article long? I have been translating the article for three hours.