Usages (uses) contrast Keywords/ examples Animations

1. PRESENT PERFECT VS PERFECT
CONTINUOUS

2.  PERFECT
 Change:
I’ve moved to a new school
 No time:
I’ve met an old friend there
 Recent:
We’ve have already finished a talk
about you
 Past --- up to present
We’ve known each other for 3 years.

3.  sth has happened before now/
a certain time
 Positive sentences :
I’ve already talked to him
 Questions:
Have you finished cooking
already?
 sth has not happened before
now/ certain time
 Negative sentences:
I’ve not finished yet.
 Questions:
Have you paid the bill yet?
Already Yet

4.  At any time in the past
 Positive: This is the highest
tower I’ve ever seen.
 Q: Have you ever adopted an
animal?
 At no time in the past
 Negative: I’ve never seen this
before.
= I’ve not seen this
before
Ever Never

5.  Before a date
 Ex:
since we last met
since I was young
since we were at
school
since last August
since Saturday
since 2005
since last week
 Before a period of time
 Ex:
for 3 hours
for 5 days
for a year
for a week
for 7 months
for the last week
Since For