The present continuous tense is formed using 'to be' + -ing form of the main verb'. The full form or the short form of the verb 'to be' can be used in this structure.

For most verbs, '-ing' is added to the base form of the verb to form the present continuous tense, but when the verb ends in '-e', it should be removed before adding '-ing'. Here are some examples:

If the verb ends in a vowel + a consonant and the last syllable is stressed, the consonant is doubled before adding the '-ing'. For example:

To make a present continuous verb negative, add not to the 'to be' verb. For example:

To make a question in the present continuous tense, use the 'to be' verb at the beginning of the sentence before the subject and then add the '-ing' form of the verb.

The present continuous tense is used to talk about an ongoing action or an event that is happening right now.