  We propose a class of inflation models with potential V(\phi)=\alpha \phi^n
exp(-\beta^m \phi^m). We show that such kind of inflaton potentials can be
realized in supergravity theory with a small shift symmetry breaking term in
the K\"ahler potential. We find that the models with (m=1, n=1), (m=1, n=2),
(m=2, n=1), and (m=2, n=3/2) can easily accommodate the Planck results. In
particular, the tensor-to-scalar ratio is larger than 0.01 in the 1\sigma
region. Thus, these models generate the typical large field inflation, and can
be tested at the future Planck and QUBIC experiments.
