As expected, normal modes with substantial pseudo-translational and pseudo-rotational contributions also include a high environmental contribution and angular deviation. For the systems without solvent molecules in the partial Hessian, the pseudo-translational and pseudo-rotational contributions appear in the six lowest-frequency modes, except in the case of propanamide in water, where there are also contributions in the seventh-lowest frequency mode. For the formaldehyde-water cluster in water, the twelve lowest-frequency modes have non-negligible pseudo-translational and pseudo-rotational contributions. These normal modes are not well described within the PHVA approximation, which is also reflected in the high errors in frequencies and intensities. The following discussion does not consider the normal modes with high pseudo-translational and pseudo-rotational contributions.