Free Word Formation Quiz – Practice Changing Word Forms
Read each sentence and choose the correct form of the word (noun, verb, adjective, or adverb) that fits. Get instant feedback on each choice. After answering all 5 questions correctly, detailed explanations will appear below each question to help you understand how the word form changes. Test and learn in a simple and fun way.
Turning One Word into Four Different Parts of Speech
Many English words share a root but change form depending on how they're used in a sentence — "decide" (verb), "decision" (noun), "decisive" (adjective), and "decisively" (adverb) are all built from the same idea, just reshaped to fit different grammatical roles. Recognising these families multiplies your vocabulary far faster than learning each word separately.
Word formation questions test exactly this skill — given one form of a word, can you correctly produce another form that fits a different position in a sentence? This shows up constantly in fill-in-the-blank exam questions, where choosing the noun form instead of the required adjective form is one of the most common mistakes learners make.
This quiz focuses on common word families and the suffix patterns that create them — "-tion" and "-ment" for nouns, "-ive" and "-ous" for adjectives, "-ly" for adverbs — since recognising these patterns lets you predict correct forms even for words you haven't specifically memorised before.
A good habit: whenever you learn a new word, immediately look up its noun, verb, adjective, and adverb forms together as one family rather than learning just the one form you first encountered. Our Prefix and Suffix Quiz covers the building blocks behind this same skill.