present perfect continous

[alex90]

Hello,

We know that we can't use adverb of time of present continuous tense with present perfect continous.

I have been doing my homework now. It is incorrect

But I want to learn whether we can use 'today' with present perfect continous.

1)I have been doing my homework for 3 hours today.
or
2)I am doing my homework for 3 hours today.

3)I m studying English for 5 months this week.
or
4)I I have been studying English for 5 months this week.

5)I m studing English this week.

Could you tell me which are correct?

Thank you

[bhaisahab]

Hello,

We know that we can't use adverb of time of present continuous tense with present perfect continuous.

I have been doing my homework now. It is incorrect

But I want to learn whether we can use 'today' with present perfect continuous.

1) I have been doing my homework for 3 hours today. OK. If you are still doing it.
or
2) I am doing my homework for 3 hours today. Not very natural. "I'm doing three hours of homework today" is better.

3) I'm studying English for 5 months this week. No.
or
4) I have been studying English for 5 months this week. OK. I'd prefer "I will have been..."

5)I'm studying English this week. OK.

Could you tell me which are correct?

Thank you

Bhai.

[alex90]

Thanks for your answers.