YET in future questions

[mafto]

Hello, the basic difference between already and yet is not difficult, but I haven't found any example of usage in future questions.
E.g. Will you be able to do it yet?
Is such a sentence correct? If yet is supposed to mean sth like this soon in the sentence.
Thank you

 

[SoothingDave]

No, you can't use "yet" like that.

 

[mafto]

No, you can't use "yet" like that.

OK, thank you
And what about the present? Can you/Could you contact her yet? WOuld that be correct?

 

[SoothingDave]

Have you contacted her yet?

 

[michaelvicture]

tricky, i have never seen such a sentence before in my life until this one. Cheers.

 

[emsr2d2]

The word "yet" means "at any time in the past leading up to right now", or "right now". It's generally used in the past tense with a negative:

I haven't bought any apples yet.
I haven't seen the doctor yet.

or in the present tense but a negative noun:

I have no money yet.
I have no grey hairs yet.

 

[tzfujimino]

The word "yet" means "at any time in the past leading up to right now", or "right now". It's generally used in the past tense with a negative:

I haven't bought any apples yet.
I haven't seen the doctor yet.

or in the present tense but a negative noun:

I have no money yet.
I have no grey hairs yet.

In the Present Perfect tense...and in the interrogative as well?:-D

Have you seen the doctor yet?

 

[BrunaBC]

And what about "Have you already seen the doctor?" I believe it's not ok, but can't tell why.:roll:

 

[tzfujimino]

And what about "Have you already seen the doctor?" I believe it's not ok, but can't tell why.:roll:

It's OK, I think.
In your sentence, 'already' is used to express 'surprise'.
:-Dalready - Definition and pronunciation | Oxford Advanced Learners Dictionary at OxfordLearnersDictionaries.com
It's an unlikely utterance, though.

 

[SoothingDave]

And what about "Have you already seen the doctor?" I believe it's not ok, but can't tell why.:roll:

It's fine.

Don't forget every parent's favorite backseat question: "Are we there yet?"

 

[5jj]

And what about "Have you already seen the doctor?" I believe it's not ok, but can't tell why.:roll:

It's possible, if the speaker is checking whether it's necessary for the person addressed not to see the doctor, because they have done so already. So, roughly:

Have you seen the doctor yet? - The speaker does not know, and wants to find out.
Have you already seen the doctor? - The speaker suspects that the answer is yes, and merely wants confirmation, or knows that the answer is yes, and is expressing surprise. The sentence would be more natural with 'already' in sentence-final position.

The second scenario is not very likely - I am merely noting that it is possible. I recommend that you stick with 'yet' which is almost always correct; 'already' is rarely natural.