2015-03-10 Structure: present perfect

Greg Malivuk
[email protected]
http://www.pastebin.com/u/gmalivuk
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p. 26
Have you ever gone skydiving?
part A
1 a
2 b
3 a
4 c
5 b
6 a
part B
1 unfinished - "I've been building" (present perfect progressive)
2   finished
3 unfinished - "I've been working on a master's degree"
4 unfinished
5   finished - "I've learned how" (present perfect)
6   finished - "I got engaged" (simple past)
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perfect = [have] + past participle
progressive = [be] + verb(ing)

perfect progressive = [have] been + verb(ing)

I built a website. (past simple)
= It happened at a specific completed time in the past and is finished.

I have built a website. (present perfect)
= It happened at an indefinite time in the past and is finished.

I have been building a website. (present perfect progressive)
= It started in the past and is unfinished in the present.
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Have you done your homework? (Maybe not yet, but you may in the future.)
- The time for doing your homework is not finished.

Did you do your homework? (For example "last night", which is completed.)
- The time for doing your homework is finished. We are in class now.

I did not eat breakfast this morning.
= The time for breakfast is finished.

I have not had enough coffee this morning.
= The time for coffee is not finished.

It hasn't rained yet.
= The time for rain is not finished.

It didn't rain today.
= The time for rain today is finished.
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* I have built a website for three days. (WRONG)
I have been building a website for three days. (OKAY)
- "build" is a medium action. Simple and progressive are different

I have lived in Boston for 7 years. (OKAY)
= I have been living in Boston for 7 years. (OKAY)
- "live" is a long action. Simple and progressive are basically the same.
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p. 31 exercise 1B
2 F - "so the historic event was a week late" = June 14
3 T
4 F - "for years" = more than a year ago
5 ?
6 T
7 T
8 ?
9 ?
10 T
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p. 31 exercise 2
2 got (1992 is finished)
3 appeared ("one year later" = 1993 - also finished)
4 sold out ("immediately" = at that time = 1993)
(5-10 Homework)
p. 32 exercise 3
A
2 bought
3 was
(finish this for Homework)
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Homework: p. 31 exercise 2 and p. 32 exercise 3