  We propose a modification on the super-potential of (arXiv: 1901.09046) which
discusses the simplest construction of inflationary $\alpha$ attractor models
(also called T/E models) in supergravity without the sinflaton. This can make
all the components of the first derivative vanish at the minimum point after
the specific choice for the modified part. We also extend T/E models into the
multi-field versions, motivated by considering the effect of multi orthogonal
nilpotent super-fields, whose sgoldstino, sinflatons and inflatinos are very
heavy such that we can take the orthogonal nilpotent constraints to obtain
physical limits. Finally, we study the inflation dynamics in the double field
cases of both T and E models and show their turning rates and the square mass
of the entropic perturbation, which can be used for further observational
verification.
