[Grammar] Is it OK to say, "Please be doing something"?

[Mike MC]

I wonder if it's correct to use a continuous from in an imperative sentence. It's just a made-up example:
Please be working when the supervisor comes to the company.

 

[emsr2d2]

I wonder if it's correct to use a continuous [STRIKE]from[/STRIKE] form in an imperative sentence. [STRIKE]It's[/STRIKE] Here is just a made-up example:
Please be working when the supervisor comes to the company.

It's not impossible. It would be more natural as "Please make sure you're working when the supervisor comes ...".

 

[SoothingDave]

It sounds fine to me.

 

[emsr2d2]

I think I'd just expect something other than a continuous after "be".

Please be on your best behaviour when the supervisor comes.
Please be friendly when the supervisor comes.

 

[Tarheel]

Boss: Make sure you're working and not fooling around.