  This article aims to explore the idea of describing the complete evolution
process of the universe with a cosmological model. For this purpose, we work on
a recently developed generalized symmetric teleparallel gravity called $f(Q,T)$
gravity, where $Q$ and $T$ represent the non-metricity scalar and trace of the
energy-momentum tensor. We present two $f(Q,T)$ cosmological models for two
different Lagrangian forms of $f(Q,T)$ and discuss their cosmological
parameters. Further, we discuss various energy conditions to check the
viability of those models and also discuss the scalar field construction for
describing the inflationary scenario in the early times. In addition, we
examine the dark energy nature of the presumed cosmological solution by
employing state-finder diagnostics and $\omega-\omega^{\prime}$ phase space
analysis. In conclusion, we found that our models can present a complete
evolution profile from the early to late times of the universe.
