Sentences given as commands are defined as imperative mood. To have a sentence as a command, we need to conjugate a verb in the imperative mood and matching the correct subject pronoun. In this sentence viene is the conjugation of the verb venir that matches él/ella/ud (he/she/you formal) but in the simple present not in the imperative mood. To write the correct command we have:
Sentences given as commands are defined as subjunctive mood. To have a sentence as a command, we need to conjugate a verb in the subjunctive mood and matching the correct subject pronoun. In this sentence viene is the conjugation of the verb venir that matches él/ella/ud (he/she/you formal) but in the simple present not in the subjunctive mood. To write the correct command we have:
Cada poema que se incluya en la antología debe contener: Los datos del libro de donde se obtuvo. La portada del libro de donde se obtuvo. El nombre de quien eligió el poema. https://www.educaplay.com › 14484...
Mi vecino tuvo que ayudar a su abuelo means my neighbor had to help his grandparent. It says he had to help him but it doesn't explicitly says that he did or what he did to help him out. There is not enough information to confirm that he did. Hope this helps