Curated OER
Parts of Speech
Review advanced grammar concepts with this standard online interactive multiple choice quiz. Young grammarians must know simple grammar principles such as verbs, prepositions and adverbs as well as higher-level knowledge like passive vs....
Khan Academy
Khan Academy: Auxiliary (Helping) Verbs
Is the underlined verb the main verb in the sentence, or is it helping the main verb?
Other
Windmill Works: The Case of Geronimo's Headress Part 1
A short fill-in-the-blank exercise on identifying the correct modal verb forms. Read a short paragraph about Geronimo's headress and then choose the correct verb in the following paragaph. Hints are available.