This little free tool can help you train your English word formation skills. A part of the Cambridge certificate exam is about forming the right word form when given the stem of a word. This tool can help you improve on that part of the test.
The tool can be used for First Cambridge English (FCE), Cambridge Advanced English (CAE), and Cambridge Proficiency English (CPE) - just select your difficulty level below, though the presented words are not explicitly related to the different exams.

Difficulty:    Number of words:    
Enter each word on separate lines. Multiple words often exist.

Noun(s) Verb(s) Adjective(s) Adverb(s)
Hazzle-free organization and work load sharing for recurring events.