possibility

[tasdibek]

Hello,
First of all, I thank u for answering my first question.
And second comes:
We use "must" for possibilities -strong ones.
Lets say, I saw my friend buy a bus ticket and I want to express a future possibility for him. What if I say:
- He must go on holiday nowadays.
I am not sure if there is such usage for must, can it be mixed with "neccessity function" of must.

[Tdol]

He must be going on holiday.
(Nowadays doesn't work here as it refers to a general period of now, not the future- you could use 'soon', etc.)