English for Today

6. Used to: It performs the following functions: a. It is used to express an old habit which has remained: ... Read More

4. Ought: It has only one form and it is commonly used to express an obligation that is right, advisable, ... Read More

An auxiliary verb is a verb that cannot stand on its own. They are used to help main verbs. The ... Read More

10. Comprise: This is often mistaken for ‘consist’, which goes with ‘of’. ‘Comprise’ does not take ‘of’: The class consists ... Read More