An excellent grammar reference page from Jolly Phonics provides definitions and actions to remember several fundamental parts of speech. The methods are interesting for learners who have a hard time remembering the differences between...

A graphic and example sentences to demonstrate how some prepositions show position or place.

Information and examples of using the prepositions "at," "in," and "on" to indicate time.

Links to information about prepositions including: What is a preposition, preposition list, a simple rule for prepositions, prepositions of place, and propositions of time.

A list of the 70 most common prepositions with a link to a longer list with examples.

A rule about prepositions and prepositional phrases. Examples are provided.

The University of Washington provides an excellent collection of grammar-related summaries. The collection includes material on verb tenses, agreement, noncount nouns, and many other topics.

Over 200 short self-quizzes for English learners at beginner and intermediate levels. Quizzes span topics including spelling, grammar, vocabulary, and punctuation.

Explore the world of "Parts of a Sentence." Find out about adjectives, nouns, prepositions and more. This site features an overview of each part of speech.

Effective illustrations of some commonly used prepositions that will aid students in learning grammar in both English and Spanish.

Part of H.W. Fowler's classic text on the use and misuse of the English language, "The King's English" (1908) section on prepositions focuses on their idiomatic nature. A comprehensive but a bit outdated manual, "The King's English"...

This section of an online grammar guide explains how to identify prepositional phrases.

This site is from the Internet Grammar of English from the University college of London. It offers a decent explanation of prepostions, elaborating on complex and marginal prepositions. Offers a self-quiz.

The site discusses using semicolons with complete independent clauses, and prepositions.

Offers a good explanation of prepositions and the object of prepositions, along with a list of common prepositions and several specific preposition tips.