Present perfect simple: Focuses on the result, "You've cleaned the bathroom! It looks lovely!", Says 'how many', "She's read ten books this summer.", Describes a completed action, "I've written you an email.", Present perfect continuous : Focuses on the activity, "I've been gardening. It's so nice out there.", Says 'how long', "She's been reading that book all day.", Describes an activity which may continue, "I've been writing emails.", When we can see evidence of recent activity, "The grass looks wet. Has it been raining?", "I know, I'm really red. I've been running!",

Present perfect simple/continuous

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