PRESENT SIMPLE
https://iglikatodorova.blogspot.com/2018/09/simple-present.html
PRESENT CONTINUOUS - ЗА ДЕЙСТВИЯ В МОМЕНТА НА ГОВОРЕНЕ И ПЛАНОВЕ ЗА БЪДЕЩЕТО
https://iglikatodorova.blogspot.com/2019/03/present-continuous.html
PRESENT SIMPLE OR PRESENT CONTINUOUS
https://www.perfect-english-grammar.com/present-simple-present-continuous-1.html
PAST SIMPLE AND PAST CONTINUOUS
https://iglikatodorova.blogspot.com/2018/10/past-simple-and-past-continuous.html
Adverbs or Adjectives
https://www.perfect-english-grammar.com/adverbs-or-adjectives-exercise-1.html