The plural thing

If you want to pluralize something, there are a lot of rules. So if it ends in a vowel (a, e, i, o, u) then the vowel will be removed and replaced with a ‘t’. If it does not end in a vowel, you just add an ‘a’. If there is already an ‘a’in the word, the added vowel will be ‘i’ instead. If there is already an ‘a’ and ‘i’, then it will be an ‘e’. I doubt than any word in Egentrix will have more that two vowels at most but if it coincidentally does, then I will fix it. But I don’t think that’s happening so therefore, I’m not putting any more effort into this.