There we go! yo va is contracted to "ya"...There you're going the wrong way..no..

You are correct. The future tense yo va can be contracted to ya.
This is the same for:
mwen va - ma
ou va - wa
li va - la
nou va - na

Examples:

Yo va chita ansanm or Ya chita ansanm. - They will sit together.
Mwen va rele ou or Ma rele ou. - I will call you.
Ou va pran bon nòt or Wa pran bon nòt. - You will take good notes.
Li va kwit diri a or La kwit diri a. - He will/She will cook the rice.
Nou va pale demen or Na pale demen. - We will talk tomorrow.

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