Form 1065 Schedule B: What's the best answer to this question: At any time during the tax year, was any partner in the partnership a disregarded entity, a partnership (including an entity treated as a partnership), a trust, an S corporation, an estate (other than an estate of a deceased partner), or a nominee or similar person? . . . . . . . . . . . . . . . . . . . . . . . . . .