Unitian English is currently in what I like to call, Phase 1. It is more of a Modern English/Early Modern English hybrid than anything else. But it is still quite usable, and the only way that we'll ever learn what works and what doesn't is through actual use. So, here is Lesson 1 on Unitian English:
Pronouns
Unitian pronouns are borrowed from Early Modern English. Thus, we have thou and thee for the nominative and oblique second person singular forms of the Modern English you. You is, of course, still used. However, it is used only as a plural or for those of higher rank than the speaker. You has two forms in Unitian English. The familiar you is the nominative second person plural/formal form, and ye is the oblique second person plural/formal form. An easy method of figuring out whether to use thou/you or thee/ye is the change the sentence to the first person and see if you would use the word I or the word me. If you would say I, then say thou/you. If you would say me, then say thee/ye. Pretty simple, really.
There's also the first person singular (I/me) and the first person plural (we/us). These are used exactly as in Modern English, except for one word: Ic. Ic is a form of the nominative first person singular, used before vowels and h. I should only be used before consonants other than h.
Then there's the third person singular and third person plural pronouns, which are he/she/it (nominative), him/her/it (oblique), and they (nominative), them (oblique). You are familiar with all of these. The main difference here is that they should not be used as a gender neutral third person singular, as it is in Modern English. That is it, at least for now. Eventually hit (from Old English) could be used in its place, or possibly zhe/zhim (nomative/oblique).
That's all the nominative and oblique forms. Now for genative and possesive.
The genitive first person singular is my/mine (mine is used before vowels and h, while my is used before consonants other than h), and the possessive first person singular is mine. My/mine (genitive/possessive) should be used as in Modern English. The only difference is using nominative mine before vowels and h.
The genitive first person plural is our, and the possessive first person plural is ours. They are used as in Modern English.
The genitive second person singular is thy/thine (thine is used before vowels and h, thy is used before consonants other than h). The possessive second person singular is thine. Used just like you/yours (genitive/possessive) in Modern English, except for thine (possessive) being used before vowels and h.
The genitive second person plural is your, the possessive second person plural is yours. They are used exactly as in Modern English.
The genitive third person singular is his/her/its (and possibly zheir in the future). The possessive third person singular is his/hers/its (and possibly zheirs in the future). They are used as in Modern English.
The genitive third person plural is their, and the possessive third person plural is theirs. Again, as in Modern English.
When I (or maybe Ethan) have the time to do so, I (or he) will write Phase 1 Lesson 2: Verbs. Now THAT'S gonna be fun.
Go thou in peace,
Alexander