The other day during class I wrote a table of the conjugation of four tenses on the board. The students enjoyed the visual overview of all tenses side by side which allowed them to see the minor differences between the various tenses quickly. At the end of the lesson, Tarsis (an English learning pilot from Brazil) asked me for the chart. What a great idea! I've put together these tense tables of all 12 tenses - 13 if you count the future with 'going to' - in the positive, negative and question form on one page. Another great way to review tenses is to use the visual tense charts providing time clues to usage. Finally, you can also get an overview of all the tenses and the relation to past, present and future by using this tense timeline.