source: Englishing       2018年2月25日
This is a great lesson for those who have learnt all the tenses and wish to review the continuous forms. Marc reviews every way we can use continuous verb forms, and he explains it by listing six different ways to use it. He provides easy examples for each usage. At the end of the lesson he warns students not to confuse stative and dynamic verbs.
This lesson is designed for intermediate students who wish to improve their English grammar, and for those above levels who wish to clear up doubts about this topic.