  We consider effects of the Earth rotation on antenna patterns of a
ground-based gravitational wave (GW) detector in a general metric theory that
allows at most six polarization states (two spin-0, two spin-1 and two spin-2)
in a four-dimensional spacetime. By defining the cyclically averaged antenna
matrix for continuous GWs from a known pulsar, we show that waveforms for each
polarization state can be uniquely reconstructed in time domain from a given
set of the strain outputs at a single detector. Constraining the propagation
speed of extra polarization modes, if they coexist with the
transverse-traceless modes, is also discussed. We examine also possible effects
due to the length-of-day modulation as well as a secular change in the pulsar
spin period.
