The endings –able, –ion, –er, –or, –ance, –ence, –ous, –ish, and –al are generally used to form adjectives and nouns. Read these guidelines to learn how they affect the spelling of the word to which they’re added, then test yourself with the training quizzes.

Prefixes, suffixes, and combining forms are some of the important building blocks for creating new words in English. Find out more about words formed this way, then test yourself with the training quiz.