5 Indicators for Present Perfect Simple are
1)yet, ever, never, recently.
2)all day, by, since.
3)every day, usually, often.
4)yesterday, ago, last month.
6 Indicators for Present Perfect Continuous are
1)yet, ever, never, recently.
2)all day, by, since.
3)every day, usually, often.
4)yesterday, ago, last month.
