DAS: "As far as the tables of tenses are concerned, we have been working on present tenses for a while and our pupils can use them correctly. However, some of them fail to distinguish between them sometimes. Therefore, we are going to continue and I can assure you that these activities have improved their grammar skills noticeably. Still, there is a lot to be done.. We'll keep it up."
I suggest you talk to Yemi and you organise an all school 10-minute check-up, called "промежуточная проверка", in writing and then start working on another table. Consult NLO on the subject. The lady will help you.