Answer:
I believe that it is CONDITIONAL TENSE
Explanation:
Frequently, the conditional is used to express probability, possibility, wonder or conjecture, and is usually translated as would, could, must have or probably.
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The answer of 1. Es el libro del profesor, no de la profesora. 2. Ellos van a la tienda. 3. Vas al colegio bolivar. 4. Es la casa de la familia salas