Instructors looking to assist students in understanding tenses will benefit from developing verb tense worksheets for use in the classroom.
Start with the simple tenses and make sure students have a working understanding of how those tenses function within sentences. Charts like the .pdf file prepared by YourDictionary and shown to the right can be a very helpful tool.
Move along to the perfect, the progressive, and the perfect progressive tenses when students are ready.
After discussing each specific tense, administer a worksheet where students are required to form sentences using that tense.
Students will benefit from the opportunity to immediately put the instruction into practice by creating their own sentences. Encourage creativity! Just because they are practicing syntax doesn't meant that they can't have a little fun along the way. Entertaining sentences that reflect each specific tense are just as pedagogically sound as dry, formulaic sentences.