TIME ----> 1. Finished. ---> Past Simple
2. Unfinished. ---> Present Perfect
1). Past Simple (S+pp)
*-* I worked hard
- yesterday
- last week
- last month
USE
* Something that happened once in the past.
- I met my husband in 2008.
- We went to France for our holiday.
- They got home very late last night.
* Something that was true for sometime in the past.
- I lived abroad for ten years.
- He enjoyed being a student.
- She played a lot of tennis when she was younger.
* Something that happened again and again in the past.
- When I was a girl I walked a mile to school every day.
- I always enjoyed visiting my friends.
- We sang a lot while we were in karaoke bars.
* We often use phrases with ago with the past tense.
- I met my husband a long time ago.
Question & Negative
- We use did followed infinitive to make a question.
- When did you meet your husband?
- Where did you go for your holidays?
- Did you live abroad?
* We use din not (didn't), to make negatives in the past tense.
- I didn't see you yesterday.
- We didn't get home until very late last night.
- They didn't go to China this year.
2). Present Perfect (have/has+pp)
Present Perfect Continuous (have/has+been+ -ing form)
*-* I have worked hard --> Present Perfect *-* I have been working hard. --> Present P. Continuous
- this week
- this semester
- since January
- since 6 am
USE
* Something that started in the past and continues in the present.
- She has lived in Taiwan all her life.
- I have been married for nearly three years.
- It's been raining for hours.
* Something we have done several times in the past and continue to do.
- I have worked here since I left school.
- I have visited Niagara Falls many times in my life.
- He has written three books and he is working on another one.
- They have been staying with us since last week.
- I have been watching that program every week since it started.
* When we are talking about our experience up to the present (we use ever/never).
- My last birthday was the worst day I have ever had.
- Have you ever met Fendy?
- Yes, but I have never met his wife. --> Negative form.
* Something that happened in the past, but is important at the time of speaking.
- I can't get in the house. I have lost my keys.
- Mr. Chang is not at home. I think he has gone shopping.
- I'm tired out. I have been working all day.
* We use the present perfect with time adverbial which refer to the recent past;
just; only just; recently
- We have just got back from our holidays.
..or adverbials which include the present. ever, so far, until now, up to now, yet
- Have you ever seen a ghost?
- Where have you been up to now?
- Have you finished your homework yet?
- No. so far I have only done my history.
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