Hi! I'm writing a paper for my Master English course. I always have problems with verb tenses...please, could you help me? Maybe this piece of information could be useful: the course I attend is two semesters long; now we're in the mid-term break, so the first part is over. But the second part of the course is going to start again on March.
Could you correct these sentences, please?
1.
I have been studying English for thirteen years. Over this period, my language learning experience has involved (or involved?) mainly formal education. 2. It took me a while to find my feet in the Web 2.0 world but with a little of effort things gradually had bettered (or bettered?). 3. I must admit that my technological skills have improved (or improved?) enormously in the last two months. 4. The tool I enjoyed the most is (or was?) the blog. Thank you very much! 