SINGULAR. PLURAL.
libéral, libéraux, _liberal_.
rural, ruraux, _rural_.
5. N. B.--The following, though ending in _al_, come under the general
rule:
SINGULAR. Plural.
amical, amicals, _friendly_.
bancal, bancals, _bandy-legged_.
fatal, fatals, _fatal_.
final, finals, _final_.
frugal, frugals, _frugal_.
filial, filials, _filial_.
glacial, glacials, _frozen_, _icy_.
initial, initials, _initial_.
labial, labials, _labial_.
matinal, matinals, _early_.
médial, médials, _medial_.
naval, navals, _naval_.
penal, penals, _penal_.
théatral, théatrals, _theatrical_.
§ 16. COMPARISON.