Here's a question that someone sent me this week:
I have a big problem with verb tenses, especially the present perfect continuous and past perfect continuous. I can't use these tenses when I'm speaking. How can I solve this problem?
My answer is simple: stop worrying about this! You don't have time to think about grammar when you're speaking. Thinking about verb tenses will distract you from your main objective, which is to answer the question well. Forget those tenses, and focus instead on listening to the question and answering it naturally.