What grammatical error exists in the sentence "Amīcum meum rogāvī prīmum īre ad cēnam, deinde apud mē manēre"?

In the sentence "Amīcum meum rogāvī prīmum īre ad cēnam, deinde apud mē manēre," the use of "rogāvī" is the key focus. The verb "rogāre," which means "to ask," often takes a subordinate clause when expressing what is being requested. In this case, the speaker is indicating that they asked their friend to do something. To express indirect requests involving a potential action or something contingent upon the subject's willingness, a subjunctive clause is typically employed.

The correct construction would involve changing "īre" (to go) into a subjunctive form, specifically "īre" would be part of a purpose clause, leading to "ut īret" (that he might go). This is the reason why a subjunctive clause is necessary here, because it reflects the nature of the request regarding indefinite future actions.

The other options do not accurately capture the grammatical issue present in the sentence, as the sentence does not lack a direct object nor is the verb tense incorrect. Additionally, there is a subject present in the clause with "meum" referring to the object of the action. Thus, the necessity for a subjunctive clause is