Certain verbs include extra info, which describes the verb usage, meaning etc. Verbix shows lists of verbs with an irregular past participle. Verbix shows lists of verbs with both an irregular and a regular past participle. Color codes show possible irregularities in the verb tenses. Maps show the areas where the selected language is spoken.
Animated maps show, how some languages have been spread.
All this information is available in Windows Verbix, which can be downloaded from this site. By default the verb forms are marked in black. Irregular verbs forms are marked with red . Obsolete, archaic and dialectal forms are marked with purple . Non-existing forms are marked with gray .