# What is the difference in this case between present progressive and present perfect continuous

For the following questions you can answer using

"I have studied for 2 hours.

"I studied for 2 hours."

"I am studying for 2 hours."

First Question: What can she say at 4pm?

"I am studying for 2 hours." or "I have been studying for 2 hours"

Because she is describing the PAST, PRESENT & FUTURE she can use the PRESENT TENSE. Here the CONTINUOUS ASPECT because it is TEMPORARY, ACTIVITY focused. See Chapter 1 for more details. Would it be possible to use present perfect continuous

• Hey there! That's my site! PM if you would like! The Present Perfect Continuous V Simple is looked at at Chapter 7, you are at Chapter 2 – EnglishAdam May 8 '19 at 21:29

I don't really understand your question, but you use "I have been studying for 2 hours" if you started at two and were still studying at 4 or you had just stopped. If you studied from 12 p.m till 2 p.m. you'd say "I studied for two hours, because these two hours are in the past. "I am studying for two hours" means that you are going to study for two hours into the future, so from 4 p.m. till 6 p.m.

If the person starts studying at 2pm, at 4pm they can use the present continuous ONLY if it includes the future. So " I am studying for 3 hours, I have done 2 and I need to do another one."

Otherwise, if they are describing past and present time the Present Perfect is normal.

I have studied for two hours. I have been studying for two hours.

Both are acceptable. The difference?

The Simple focuses on the fact of two hours. The Continuous focuses on the activity of studying.

I am tired because I have been studying. (you get tired from an activity)

My study requirement today is done because I have studied for 2 hours (the quantity of time)