This feature can be unproblematically inferred from the feature Mood, as the schema below clearly shows. The redundant application of these two features to Portuguese could be represented as follows:
Verb-form/Mood | Finiteness |
indicative | finite |
subjunctive | finite |
imperative | finite |
conditional | finite |
infinitive | non-finite |
participle | non-finite |
The feature Finiteness is therefore not required by the Portuguese language.