He is working now is which type of sentence

The sentence He is working now shows an action that is happening at the present moment. This tense is called present continuous tense. It is formed using the subject plus is or are plus verb with ing form. For example She is reading or They are playing are also present continuous sentences. Present indefinite tense expresses regular actions and present perfect continuous describes actions continuing over a period of time. In this case the presence of is and verb with ing makes it clear that it is present continuous. This tense is important in daily communication and English grammar.