Today we are going to look at talking about past obligation. Remember that in the present we use the modal verb “must” and the verb “to have to” to express obligation. They are very similar in meaning but “must” indicates stronger obligation. Look at some examples: You must study more! If not, you will fail …
We are going to look at two present tenses today known as the present simple or simple present and the present continuous. They are similar in that they both refer to the present time. However, there are some major differences, so let’s take a look. We use the present simple… – for regular actions or …