3 ways to say about my plans for today. What tenses do they use?
There are three ways to tell about the plans for today (as I know).
1. I will hang out with friends – this means, that there is a plan, but you can suggest me something better (the most uncertain version).
2. I'm going to hang out with friends – this means, that I have a certain plan and I know the details of it, but something can be changed.
3. I'm hanging out with friends tonight – this is also a plan, but that's for sure and I'm not going to change it.
a) Is 2 and 3 in present continuous or not?
b) Am I correct with describing context of these sentences?