The Perfect Isolating Language - Part 1

Objective: To visualise a language which is grammatically perfect, i.e. has no exceptions to the rule, no redundancy, and needs nothing to be implied.

Constraint: The stylistic constraint in this project is that it is an isolating language (no affixes or barreling of words), with all cases and tenses indicated by markers rather than built into the word. Uniquely for this project, my language will have a marker for the nominative and accusative cases as well as the locative and other cases.

Method: The project will start from the use of nominative and accusative markers. Thence additional rules will be introduced to express things already expressible in English. Vocabulary will be conjured out of thin air or with reference to some existing language, so that the reader is not confused by broken English.

A. The Nominative and Accusative Markers
The particle an accompanies a subject i.e. a noun in the nominative case:
An hun - dog
The particle ir accompanies an object i.e. a noun in the accusative case:
Ir pesk - fish
For a simple sentence that says: A dog is eating a fish, we can say:
An hun thju ir pesk.

The beauty of this rule is that it eliminates the need for a passive voice, like the Finnish language infamously possesses. So if you want to say that a fish is being eaten, you can say
Ir pesk thju.

B. The Definite Marker
A noun is indefinite by default. For a definite noun, the particle ta is inserted, similar in role as "the" for English.
An ta hun - the dog
Ir ta pesk - the fish
An ta hun thju ir ta pesk - the dog is eating the fish
Ir ta pesk thju - the fish is being eaten

C. Verb Conjugation and Pronouns
In order to make the language extremely isolating, no verbs are conjugated. However, there are markers for tense. Using the word fin to mean "to be":
An ta pesk fin - the fish is
An ta pesk i fin - the fish was (past tense)
An ta pesk a fin - the fish will be (future tense)

The personal pronouns are listed thus:
U / Uri - 1st person (singular/plural)
Tu / Tur - 2nd person (singular/plural)
Hi / Hir - 3rd person (singular/plural)

Relative pronouns are simply the case marker of the noun of reference:
An foda na uri, an fin in heofon - Our Father, who art in heaven

D. The Other Case Markers and Negation
The particle na indicates possession and attribution, accompanying a noun in the genitive case:
An hun na u - My dog
An foda na uri - Our Father
An na tu, an na hir - Yours, theirs

The particle in accompanies a noun in the inessive case.
The particle ana accompanies a noun in the adessive case.
The particle fra, placed before in or ana, changes that particle into an elative or ablative marker.
The particle do, placed before in or ana, changes that particle into an illative or allative marker.
Examples:
An hun na uri i het do in talo - Our dog went into a house
An hun na uri fin in ta talo - Our dog is in the house
An foda na u het do ana hi - My father is going to him (lit. going to-at him)
An foda na u fin ana hun na hi - My father is with (lit. at) his dog
An hir a kom fra in ta talo - They will come out of (lit. from-in) the house

The particle vit accompanies a noun in the commitative or instructive case, seen in English as "with".
An hi i thju ir pesk vit hand na hi - He ate the fish with his hand (instructive)
An hi a kom vit ta hun - He will come with the dog (commitative)

The particle son accompanies a noun in the essive case, like the word "like" or "as" in English.
An tu a kom son kung na uri - You will come as our king
An hi i fin son kung - He was like a king

The particle ni before the case marker negates the case, and also a verb
ni in ta talo - not in the house
An hi ni kom - He is not coming.

a1. The Lord's Prayer
An foda na uri, an fin in heofon
Helje ir nimi na tu, an land na tu kom, ir vil na tu macka, ana jurt son fin in heofon
[To be continued]