2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/189662Motivated by the results in {\tt hep-th/0508228}, we perform a careful analysis of the allowed linear constraints on $N=(2,2)$ scalar superfields. We show that only chiral, twisted-chiral and semi-chiral superfields are possible. Various subtleties are discussed.11 pages, LaTeX2eHigh Energy Physics - Theorytext