Present Continuous Tense

It is used to express a continued or ongoing action at present time. It expresses an action which is in progress at the time of speaking. For example, a person says, “I am writing a letter”. It means that he is in the process of writing a letter right now. Such actions which are happening at time of speaking are expressed by present continuous tense. Present Continuous tense is also called Present progressive tense.

Rules. Auxiliary verb “am or is or are” is used in sentence. 1st form of verb or base verb + ing (present participle) is used as main verb in sentence.

                                    Structure of sentence

Positive Sentence
    • Subject + auxiliary verb + main verb-ing (Present participle) + object
    • Subject + am/is/are + (1st form of verb or base verb + ing) + object
If the subject is “I” then auxiliary verb “am” is used after subject in sentence.
If the subject is “He, She, It, singular or proper name” then auxiliary verb “is” is used after subject in sentence.
If subject is “You, They or plural” then auxiliary verb “are” is used after subject in sentence.
The participle “ing” is added to the 1st form of verb i.e. going (go) writing (write)

Examples
        I am playing cricket.
        He is driving a car
        They are reading their lessons.

Negative Sentence
      • Subject + auxiliary verb + not + main verb-ing (Present participle) + object
      • Subject + am/is/are + not + (1st form of verb + ing) + object
Rules for using auxiliary verbs (am or is or are) after subject in negative sentences are same as mentioned above.

Examples.
         I am not playing cricket.
         He is not driving a car
         They are not reading their lessons.

Interrogative Sentences

      • Auxiliary verb + Subject + main verb-ing (Present participle) + object
      • Am/is/are + Subject + (1st form of verb or base verb + ing) + object
For making interrogative sentences, the sentence is started with auxiliary verb rather than putting auxiliary verb inside the sentence. If the subject is “I” the sentence starts with auxiliary verb “am”. If the subject is “He, She, It, singular or proper name” the sentence starts with auxiliary verb “is”. If subject is “You, They or plural” the sentence starts with auxiliary verb “are”.
Examples.
          Am I playing cricket?
          Is he driving a car?
         Are they reading their lessons?

More Examples

Positive Sentences
           I am listening to the news
           You are washing your clothes
           She is riding on horse
           They are playing football.
           It is raining
Negative Sentence
          I am not listening to the news.
          You are not washing your clothes.
          She is not riding on a horse.
          They are not playing football.
          It is not raining.
Interrogative Sentences
         Am I listening to the news?
         Are you washing your clothes?
         Is she riding on a horse?
         Are they playing football?
         Is it raining?