This tense is used to describe a continued or ongoing action at the present time. It expresses an action which is in progress at the time of speaking and has not yet been completed. The Present Continuous Tense is, therefore, used in the following conditions:
• As mentioned above, it is used for an action that is occurring at the time of speaking. • When an action in the future is mentioned without specifying when it will occur. • When we talk about a planned or arranged event or action that is set to take place at a specified time in the future. • It is also used in conditions where the action or event is occurring but not necessarily while we speak. • It is used in a changing situation. • With adverbs such as ‘always’ which describe an action that happens frequently.