Modal verbs

What model verbs do we have?

I must be home by 11 pm this time – I can’t go out much these days, dude☹
You should probably go to the gym and trim down a bit – you’ve got a few pounds to lose
It seems like I have to edit my writing a bit because I was marked down.
May I have a cup of tea at Starbucks? – No, they only serve coffee, you should give KFC a go!
You mustn’t cross the road if there’s no pedestrian crossing on your way.
You might face substantial problems while applying for an American visa.
You could ask her out on a date – she’d be elated to turn you down! ☺