;;; File containing the morpho-phonology rules.  Defined as TDL types
;;; The letter sets are specified globally on the type affix, from which these
;;; types inherit.  Letter sets are treated as being local to a specification.

+ed := suffix & 
[ PATTERN "(* ed) (!ty !tied) (e ed) (!t!v!c !t!v!c!ced)" ].

+s := suffix &
[ PATTERN "(!s !ss) (!ss !ssses) (ss sses)"].

+ing := suffix &
[ PATTERN "(!t!v!c !t!v!c!cing) (* ing) (e ing) (ee eeing) (ie ying)"].