Peter's birthday party

[krisfromgermany]

Tomorrow, Peter's hosting his birthday party and lots of people will be there for sure because he's a well-known man that everybody in the neighborhood likes. They...

1 will be singing a song for him at around 9 o'clock.
2 will of course sing a song for him.
3 are probably going to sing a song for him.
4 are singing a song for him.
5 are likely planning on singing a song for him.

Are they all natural?

 

[GoesStation]

Yes.

 

[krisfromgermany]

Thanks. Would sentence 1 also be right if I left out the "at around 9 o'clock" at the end?

 

[GoesStation]

Yes again.

 

[emsr2d2]

In BrE, #5 would be "... they are likely to be planning to sing/on singing a song for him".

 

[GoesStation]

In BrE, #5 would be "... they are likely to be planning to sing/on singing a song for him".

I missed that. Although it would be OK in colloquial AmE without to be, it's more proper with it.

 

[Tdol]

It wouldn't be wrong in BrE without it. You'd hear it, but Rover's version is far more natural.