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: a. It's crucial that he be here by noon b. It's vital that he arrive on time
Subjunctive | Grammar | EnglishClub
https://www.englishclub.com/grammar/subjunctive.htmThe English subjunctive is a special, relatively rare verb form that expresses something desired or imagined. We use the subjunctive mainly when talking about events that are not certain to happen. For example, we use the subjunctive when talking about events that somebody: wants to happen anticipates will happen imagines happening Base Subjunctive