I've spent a long time contemplating and researching affirmations. It's a very interesting subject that can quickly become complex and overthinking with.
Permanent or Eternal = it doesn't change, constant.
For example you add permanence to something really important. Like for example if you did a square for health, Sun Square, you may want to add Permanence to the affirmation. Or a magick ritual for financial benefits.
Other positive clauses are like safe, healthy, positive, happy(it should be note that not every event is happy but sometimes making the scenario happy may help), and beneficial way for me. As for happy it COULD be avoided even a scenario that isn't happy could bring happiness everyone is different.
There is also way/manner/ways/manners more than one way. We recommend sticking with one reality but as you progress multiple realities can be had in ways/manners.
Like I said it can delve into being complex and overthinking the affirmation. Some state be exact, some state be short and sweet, some state long. I honestly don't know. The affirmations for the reversal rituals are quite long like A-T/SJD rituals multiple affirmations. Maybe the fact it's a civilization ritual it works maybe mass drive it into reality.
But when it comes to personal affirmation it should be shorter though that could be different for each person.
Honestly after a while you kinda confuse yourself. Also another important part is learning to use big words that have strong meaning. In other words affirmations can be made smarter to work better as long as you know the definition and know how to use the word in a sentence a big word could be good.
Sometimes I'm at a loss at coming up with affirmations.