perfect continuos

[eliff]

Hello,

I would like to ask about 'perfect tense'. It is written that we can't use the adverb of time like '2 days ago, yesterday', ...etc with perfect tense.

I want to learn that they are correct or not.
For example,

1) Next December, I will have been working here for four years.

2) Next December, I will have worked here for four years.

3) Yesterday, I had been studying for 4 hours.

Thank you

 

[White Hat]

2) Next December, I will have worked here for four years. :up:

3) Yesterday, I had been studying for 4 hours when my alarm clock announced it was dinner time.

 

[eliff]

What I mean is we can't use like that :

I will have worked here next december.
I will have been working here next december.

They are incorrect, right?But when we use like that:

Next December, I will have been working here for four years.

Next December, I will have worked here for four years.

I had been studying for 4 hours yesterday when my alarm clock announced it was dinner time.

Is what I try to explain correct?

 

[White Hat]

Re: perfect continuous

I will have worked here next december. :cross:
I will have been working here next december. :cross:

I will be working here next December.

 

[5jj]

I will have worked here next [STRIKE]d[/STRIKE]December.
I will have been working here next [STRIKE]d[/STRIKE]December.

They are incorrect, right? Yes
[...]
Next December, I will have been working here for four years.
Next December, I will have worked here for four years.
I had been studying for 4 hours yesterday when my alarm clock announced it was dinner time.

Is what I am trying to explain correct?
Yes

You appear to understand the way in which these tenses and time phrases are used. :up:

 

[eliff]

Yes, thank you. But my teacher in school said that we can use ' all' with present continous tense' like that:

1) I am waiting for you all day.
2) She is always waiting for you all day.

Can we construct a sentence like that or must we construct a sentence like that with 'present perfect cont.' ?

Thank you

 

[White Hat]

1) I am waiting for you all day. I've been waiting for you all day.
2) She is always waiting for you all day. She waits for you all day. (usually)

It doesn't matter whether it's "all day" or "for 3 hours". We must show the duration itself. You start waiting at some point during the day. The day hasn't come to an end yet. So you've got to show that it's been happening for some time.

 

[eliff]

Are what I wrote incorrect?

Can't we say like that :She is always waiting for you all day ?

 

[5jj]

She is always waiting for you all day

It is possible to invent a context for this, but it's most unlikely.