Okay, at the last meeting there was a desire to see some 'quick and
dirty' explanations of the various verb tenses (in English) and how they
are used/what differentiates them. A very quick poke at Google has
yielded the following:
TYPES OF VERBS
http://www.englishpage.com/verbpage/types.html
The menu on the left of the page lists the various tenses. Clicking
provides information about how a tense is used and examples. Thorough,
but not the handiest cheat sheet type tool.
THE 12 VERB TENSES - USAGE
http://www.easypacelearning.com/images/12tensesandtheirusages.jpg
Quick and dirty graphic
THE BASIC FORMS OF THE ENGLISH VERB TENSES
http://www.perfect-english-grammar.com/support-files/all_tenses_form_cheatsheet.pdf
Quick chart with constructions and examples.
ENGLISH VERB TENSES
http://www.perfect-english-grammar.com/verb-tenses.html
Page with links. More detail, more clicking/navigating back and forth.
Hope this helps. If not, there is a tanker truck load more to be had by
searching Google for "all about verb tenses".