The approach adopted here identifies finiteness with the capacity to license an independent predication. The prototypical independent predication is positive and declarative; other ‘moods’, or main-clause types, while finite, may fail to display the morphosyntactic properties associated with this prototype. These properties vary from language to language, but the recurrent core properties are verbal, since the verb is the prototypical predicator. Some constructions that occur in both main and subordinate clauses, such as the infinitival in English, differ in interpretation in these two different circumstances; this may be the only difference between finite (main-clause) and non-finite (subordinate-clause) use. This general approach is contrasted with one in which finiteness is identified with the presence of a particular set of morphosyntactic properties: such a view as the latter can be maintained, if at all, only on the basis of massive recourse to covert categories.