  This paper is a natural continuation of \cite{Kr_20_2} and \cite{Kr_21_1}
where strong Markov processes are constructed in time inhomogeneous setting
with Borel measurable uniformly bounded and uniformly nondegenerate diffusion
and drift in $L_{d+1}(\mathbb{R}^{d+1})$ and some properties of their Green's
functions and probability of passing through narrow tubes are investigated. On
the basis of this here we study some further properties of these processes such
as Harnack inequality, H\"older continuity of potentials, Fanghua Lin estimates
and so on.
