The thing about coercive control is that it can be very, very subtle. So you can read the list posted by EweSurname and think you would notice these things.
But it is a creep effect,
So controlling who you can see or where you can go - it would be either he would always want to come with me or he would go in a sulk and refuse to look after the DC so I could go. Neither actually saying ‘I am not letting you go’, but that was the effect.
He did not control my finances as I earned my own money, but I paid for everything for DC and all the bills and so on, and he had particular likes and dislikes of how the food should be (which I had to get right) and so on - which was not controlling my finances in that I was not allowed access to money, but in practice, he made sure his money remained in his bank account and mine was spent...
controlling what I wore - again, not obvious but the put downs and teasing and comments and how he liked things ends up with the same result as if he had said you must wear this...
I could go on with every single example, but my point is the list looks like any reasonable person would realise they were being controlled but it is so insidious and works by pushing a small boundary at a time, till you realise you no longer know which way is up. For every single point on that list.
Horrible.