English verb inflector

Question

Does anybody know of an English verb inflector that I can use on a lexicon of verbs (in present-participle) that can give me other inflected forms of the verbs?

For exam

Answer 1

Morphg is a stand-alone tool which provides this functionality. The inverse, i.e. finding the lemma of a verb, is provided by its sister, Morpha.

Answer 2

MorphAdorner can do this in Java.

Answer 3

CPAN's Lingua::EN::Inflect will give you the plural forms, as well as helping you pick between 'a' and 'an' and pretty-printing numbers.