  We reinvestigate Yokoyama's gaugeon formalism for the spontaneously broken
Abelian gauge theory. Within the framework of the covariant linear gauges, we
give a general gauge-fixing Lagrangian which includes the gauge field, the
Goldstone mode, the multiplier B-field and Yokoyama's gaugeon fields (as well
as Faddeev-Popov ghosts). As special choices of the values of the gauge-fixing
parameters, our theory includes the usual covariant gauges and R$_\xi$-like
gauges. Although some of the gauge-fixing parameters can be shifted by the
q-number gauge transformation, the $\xi$ parameter cannot be shifted in any of
the R$_\xi$-like gauges.
