beggining in tones

I decided to beggin a new conlang that I would less think to regularize

I wrote a vocabulary how I felt it and it occured that there are only 5
voiceless consonants
     /s/, /t/, /t_h/, /t_w/, /k/, /k_h/, and /k_w/

and 15 voiced ones


And, less because it is intuitive, I introduced tones

there are the plane tone, the rising tone, and the falling tone

But, to simplify the pronounciation and not to have to think wich tone to
use before each vowel, I decided that a tone would affect the whole word and
not each of its vowels

Is it possible?

if the rising and falling tones are / and \

to love/like is [/wek_hate]
to hate/detest is [\wek_hate]

(prefix w- indicates the verb is a state, a being, a feeling or a
description)

to eat is [/zeZabI]
to feed is [\zeZabI]

(the prefix z- indicates the verb is an action)


the rising and falling tones also serve to recognize the nominative and the
accusative (or maybe erg-abs, I didn't worked on intransitive sentences)

the order of arguments is determined by the person

2nd -> 1st -> Verb -> 3rd-human -> 3rd-neutral

So there is no definited word order, it will depend of the persons of the
arguments


Object ->     1st   2nd   3rd

Subject

1st person    SOV   OSV   SVO
      or      OSV

2nd person    SOV   SOV   SVO
      or            OSV

3rd person    OVS   OVS   VOS
      or                  VSO


when the persons of the 2 arguments are the same, the order doesn't care but
I prefer the one I place over the other


and the verb agrees with the first of its arguments, don't care if it is the
subject or the object


           Singular     Plural

1 ------>     -m         -b_we

2 ------>     -d         -de

3 human->     -g         -j

  thing->     -gi        -hi


And the pronouns are

           Singular     Plural

1 ------>    me          hame

2 ------>    de          dehe

3 human->    ge          je

  thing->    gi          hi


so

I love you =  [/de \me /wek_hatEd]
you love me = [\de /me /wek_hatEd]

I love it = [/me /wek_hatEm \gi]
he loves me = [\me /wek_hatEm /ge]


on a noun, the case is represented by the same tones but on its article: the
tone on the noun contributes to its meaning

man = [/k_hamene]
father = [\k_hamene]

woman = [/k_himani]
mother = [\k_himani]

my mother loves a man = [/wek_hatEg /hEm \k_himani \ho /k_hamene]
                         love-3rd  my-nom  mother  a-acc   man


Okay, I entered in a description of the language but I still want to know
what's about the word tones? wich languages do this?