Who all are <coming> <going to come> with me?

[Vembu karthick]

I asked my siblings,
I am going upstairs now who all are coming with me?
I am going to go upstairs who all are going to come with me?

which of the following is correct? Can I use present continuous to represent the immediate future?

 

[Loob]

Hello Vembu karthick

Yes, you can use the present continuous there. But you need "Who is?" not "Who all are?" And "Who" needs to start a new sentence:
I am going upstairs now. Who is coming with me?
I am going to go upstairs. Who is going to come with me?

 

[elroy]

In US English, “Who all is...” is possible. I don’t think this is the case in UK English?

The verb is still singular.

 

[Wordy McWordface]

In US English, “Who all is...” is possible. I don’t think this is the case in UK English?

The verb is still singular.

You mean that AmE has fully functioning pronoun "Who all" which works in a similar way to "You all' / "Y'all"? That's so interesting! I never knew that.

And no, that wouldn't work at all in BrE.

 

[Keith Bradford]

In US English, “Who all is...” is possible. I don’t think this is the case in UK English?
...

It's not. Do us a favour, we've taken 130 years to get used to you-all!

 

[elroy]

Who all thinks Keith is overreacting?

 

[elroy]

which works in a similar way to "You all' / "Y'all"?

I don’t know if it’s related to “you all,” because there’s also “what all.”

What all do you find interesting about this structure?
Who all are you going to tell about it?

 

[Keith Bradford]

Who all thinks Keith is overreacting?

What, moi, over-react?!?!

Not really. The frequency of you-all in published British English today is what it was in the USA in 1890.