Subjunctive | Grammar | EnglishClub
https://www.englishclub.com/grammar/subjunctive.htmThe base subjunctive is typically used in that clauses after two structures: 1. suggest-verb (or noun) + that advise, ask, command, demand, desire, insist, order, prefer, propose, recommend, request, suggest command, demand, order, proposal, recommendation, request, suggestion 2. advisable/anxious-adjective + that