  We present the model-independent studies of non attractor inflation in the
context of effective field theory (EFT) of inflation. Within the EFT approach
two independent branches of non-attractor inflation solutions are discovered in
which a near scale-invariant curvature perturbation power spectrum is generated
from the interplay between the variation of sound speed and the second slow
roll parameter \eta. The first branch captures and extends the previously
studied models of non-attractor inflation in which the curvature perturbation
is not frozen on super-horizon scales and the single field non-Gaussianity
consistency condition is violated. We present the general expression for the
amplitude of local-type non-Gaussianity in this branch. The second branch is
new in which the curvature perturbation is frozen on super-horizon scales and
the single field non-Gaussianity consistency condition does hold in the
squeezed limit. Depending on the model parameters, the shape of bispectrum in
this branch changes from an equilateral configuration to a folded configuration
while the amplitude of non-Gaussianity is less than unity.
