title_body: What are the places where I can attach an indication of tense in relation to a conjugated verb action?
upvoted_answer: Since it&rsquo;s your conlang, you can put it wherever you think is best&mdash;but my inclination would be immediately adjacent to the verb it applies to. Your sentence structure seems to be VSO, so my initial inclination is to place it immediately after the verb.
  
  For your sample sentence, Sepyew sonsato eu bítõe de è roum de aqua.
  
  For the translation of a sentence like "The truck carried the food Joe ate", you would need two tense indicators, one for each verb: "it-carry past-tense the truck [he-eat past-tense Joe the food] sentence-as-object-indicator". If only one verb is in a non-present tense (The truck carries the food Joe ate), you apply the tense indicator to the verb that is in the non-present tense:"it-carry  the truck [he-eat past-tense Joe the food] sentence-as-object-indicator".