  We calculate 1-loop corrections to the Schwinger-Keldysh propagators of
Standard-Model-like fields of spin-0, 1/2, and 1, with all renormalizable
interactions during inflation. We pay special attention to the late-time
divergences of loop corrections, and show that the divergences can be resummed
into finite results in the late-time limit using dynamical renormalization
group method. This is our first step toward studying both the standard model
and new physics in the primordial universe.
