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
• 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).