I have been studying English since 1993.
John has helped me since 10:00 this morning.
Those people have been in Europe since August.
Note: Because we are talking about a time in the past until now, we have to use have/has + past participle when we use since.
Use for + (a length of time) like 1 day, or 3 hours, or 5 years.
I have been studying English for 4 years.
John has helped me for 8 hours.
Those people went to Europe for 2 months.
Note: It is possible to use the past tense when you use for if the action is finished.
Check Your UnderstandingChoose the correct answer. Check your answers below.
1. Leslie has lived here ten years.
2. I haven't seen you last March.
3. We sat and talked 30 minutes.
4. Young-eun studied French nine years.
5. Caroline has been learning Spanish March 1999.
6. We haven't had an earthquake 23 years.
7. I haven't heard from you Saturday.
8. Molly hasn't eaten 7:00 this morning.
9. He played basketball over 20 years.
10. Andre hasn't seen Becky yesterday.