English subjunctive - Wikipedia
https://en.wikipedia.org/wiki/English_subjunctiveThe English subjunctive is realized as a finite but tenseless clause. Subjunctive clauses use a bare or plain verb form, which lacks any inflection. For instance, a subjunctive clause would use the verb form "be" rather than "am/is/are" and "arrive" rather than "arrives", regardless of the person and number of the subject. (1) Subjunctive clauses: