Anna, from Cambridge University Press, explains how and when to use the Present Simple.

Anna explains when we use the present continuous, or present progressive tense and gives us some examples.

Anna explains how to use the past simple tense. She talks about regular and irregular verbs, and about using the verb "to do" in questions and negative statements.

Anna takes a look at the past continuous tense, which we use to say what was happening at a certain point in the past. She gives some clear examples of how it's different from the simple past tense.