Present perfect vs present perfect continuous

Present perfect vs present perfect continuous

1. She has been painting the ceiling.

   • We are interested in the activity. It doesn't matter whether something has been finished.

2. She has painted the ceiling.

   • It's important that something has been finished. We're interested in the result.
     • She has visited 3 continents.

3. You smell of alcohol. Have you been drinking?

   • The action has been continuing util now, so that there are visible effects
     • I've been working hard and now I'm tired. The ground is wet, it has been raining

4. Have you ever drank red gin? Mary has written ten emails today.

   • We use the simple to ask or say: how much, how many, how many times?
     • How many pages of the book have you read? They've played tennis 3 times this week