The present continuous tense consists of "be+v-ing". Be should be an auxiliary verb, which is easy for beginners to miss, and should be consistent with the person and number of the subject.

The second application of the present continuous tense

In practice, the present continuous tense is often used in the following situations:

(1) The present tense in the sentence often indicates that the action is in progress, so the present continuous tense should be used. For example:

They are playing basketball now. Now they are playing basketball.

(2) The sentence beginning with look and listen reminds us that the action is in progress, so we should use the present continuous tense. For example:

Listen! She is singing an English song. Listen, she is singing an English song.

(3) indicates the action that is going on for a period of time or at the present stage. At this time, there are adverbials of time such as this week and these days. The present continuous tense is often used at this time. For example:

We are making model planes these days. We are making model planes these days.

(4) Describing the actions of the characters in the picture is also to express them more vividly. This is also often used in the present continuous tense. For example:

Look at the picture. Children are flying kites in the park. Look at this picture. Those children are flying kites in the park.

Changes in the present continuous tense

Affirmative sentence: subject +be( am, is, are)+ present participle+others.

Negative sentence pattern: subject +be(am, is, are)+not+ present participle+others.

General question: Be(am, is, are)+ subject+present participle+others?

Special interrogative sentence: interrogative word +be(am, is, are)+ subject+present participle+others?