All Tenses Comparison

I have created this worksheet to compare the basic use of all the twelve tenses. A simple phrase of "writing emails" has been used in each tense. At the same time, a simple timeline is provided for each tense to help students understand both the differences in the use and the analogies between perfect tenses, progressive tenses etc. Some common words or phrases typical for each tense are provided, too. The expressions in bold correspond with the situation on the timelines.
Please note that the worksheet does not aim to list all uses of the tenses. Its purpose is to help students (once for all) understand the basic use of all the tenses. Enjoy!