We use
Present Perfect Tense when we use it to
talk about a something that started in the past and continued until now.
It is made up from:
have/has +
past participle.
Example:
I
have been in Japan for 3 years. (From 3 years ago in the past until now, I have been in Japan. I didn't live in another place.)
[
Ref]
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We use
Present Perfect Progressive Tense when we
talks about how long you have been doing something you started in the past and still continue now.
The present
perfect progressive tense has two uses. It is used for:
(1) a continuous activity that
began in the past and
continues into the present, or
(2) a continuous activity that
began in past but
has now finished (usually very recently).
It is made up from:
have/has +
present participle.
Example:
1. The students
have been practicing the play
since last month.
2. Amanda
has been relying on a pay rise to pay her student loan. (Amanda might still be relying on a pay rise, or she might have received the pay rise. You can't tell from this sentence. However, this information is just setting the scene for some more information about Amanda's present situation.)
[
Ref 1][
Ref 2]
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Perhaps, the correct usage of
for and
since are relevant to this post.
Since:
Use since +
(a specific time) like March 31, or 9:19 a.m., or Tuesday.
Example:
John
has helped me
since 10:00 this morning.
For:
Use for +
(a length of time) like 1 day, or 3 hours, or 5 years.
Example:
John
has helped me
for 8 hours. (Present Perfect Tense)
Those people
went to Europe
for 2 months. (Past Tense)
[
Ref]
