In this case,Present Perfect Continuous of Direct Speech becomes Past Perfect Continuous of Indirect Speech
The sportsman said "I have been training for 6 hours daily"
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The sportsman said that I had been training for 6 hours daily
The man said "I have been watching you"
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The man said that I had been watching you
The lady said "My husband has been dropping her home"
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The lady said that My husband had been dropping her home
The teacher said "David has been bunking classes"
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The teacher said that David had been bunking classes