ESL: Verbals: Gerunds, Participles and Infinitives

http://owl.english.purdue.edu/handouts/grammar/g_verbals.html Purdue University Online Writing Lab
The three types of verbals are discussed: gerunds, participles, and infinitives.
Gerunds and participles are also compared and contrasted in a separate section because they can both end in -ing but have different functions in a sentence.
Finally, since they can both function as nouns in a sentence despite their different forms, gerunds and infinitives are compared and contrasted in the last section.