Know and understand your poet or play or whatever it is you’re studying. Write about it to deepen your understanding. But don’t memorise an entire essay and expect to vomit it up word for word on the day and do well. Whatever material you have in your brain you’ll need to adapt to make sure that you ANSWER THE QUESTION ASKED! Let me repeat, RESPOND TO THE QUESTION. If you don’t you’re snookered. As an aside, I struggled to write more than 3 pages in exams and made a conscious decision that while j could not write a lot, everything I did write would be relevant and succinct. It was bloody difficult to do that and truly madly deeply knowing my stuff is what saved me. Sorry if that’s a bit scary, but that’s what worked for me…
Hmmm well I’d love to share some secret technique that makes you know all the tenses perfectly really easily. But to be honest, the only way to do it is through familiarity 🙁
Take it slowly, one tense at a time. Give yourself a goal of spending one week perfecting each tense. During that week, take the time to learn all the endings really well, starting with the present tense. Go to your book and look at the rules for this tense and learn them really well, practise them again and again and I guarantee you that you’ll have such a better grasp of each tense at the end of each week!
You still have loads of time to learn them so take the time now to do them really thoroughly!