On Mon, 07 Nov 2016 05:34:06 -0800, Yurui Liu wrote:
> Is it okay to say the following?
>
> A: Who is going to be delivering the speech?
> B: John.
>
> I'm wondering whether "who is going to be delivering..." is correct.
It's not overtly incorrect, but absent clear context it seems strange.
The progressive aspect is used to show action as continuing; there is
not, for me, any obvious reason one would want to cast the sentence that
way, unless some had previously said something like "I guess that by 3
p.m. we'll find ourselves in the middle of someone's speech." Else the
simple, normal way of casting the thought would be, as you suggest, "Who
is going to deliver the speech?"
> C: I'm going to be covering for Peter for a week.
>
> Here, "be going to be covering" is justified because it implies the
> action is temporary.
Yes, but not exactly for that reason. It is correct because it addresses
a future time during which the action in question will be going forth on
a continuing basis. "I'm going to be working in my garden all Saturday
afternoon."