I wanted to create a genuinely useful word for this challenge and had a few options in front of me. I knew that rather than create a simple word I wanted to create a grammatical change that would infer meaning through the amalgamation of preexisting words.
In the end, the change I decided to make was to create a new word from the word "I."
"I want to go to the beach."
"I hate you."
"You are not as smart as I."
"I shouldn't dance."
Observe the above sentences and consider the manner in which they can be interpreted. Is the speaker talking about an idea that is tied specifically to how they are feeling in the present, or are they attempting to communicate a core aspect of their being that they consider true at any time throughout their life?
By editing the word "I" in these sentences, simply adding on a bit to the word, the difference between these two concepts can be established without the need to add extra words.
I decided that I wanted the standard I to represent the present tense and the speaker's feelings based on what's happening in the moment. So to establish a version of "I" that represents the totality of one's existence, I knew I simply had to find a way to edit the word I. There were a few options to go with, looking at words like "always" "forever" and the likes. But "Ali" sounds like "ally" and "Fori" sounds too much like "for I," so I had to get a little more abstract.
I decided to go with "Evi," pronounced "EVE-I" as it connects to the word every, and also Eve from the bible who is said to be named as such for being the mother of all living.
Using this grammatical change, a new word Evi is created which essentially means "all of my being," and it becomes possible to express some ideas in far less words, providing a tad more efficiency to the language.(supposing I've not overlooked something)
"I always want to go to the beach" could be simplified to "Evi want to go to the beach."
"I have always and will always hate you" becomes " Evi hate you."
"You have never and could never be as smart as me" would be communicated far easier by saying "You're not as smart as Evi"
"I should never dance" then becomes "Evi shouldn't dance."
I also considered "Peri," to create a new pronoun using the words "perpetual" or "persistently," but in truth, because this is an entirely new addition to the language, both sound just as out of place as each other.
Nevertheless, I feel the change adds some extra utility and efficiency to the English language and so I chose to stick with this one.
This could also be taken further with additional ways of editing the word "I" to create a new pronoun that carries a little more information with it, but as this is merely for fun and for practise in regards to the construction of my own language for my fictional world, I shall leave it at this for now.