1. The present continuous tense is used for actions happening now or for an action that is unfinished. This tense is also used when the action is temporary.
2. Affirmative Sentence S + am/is/are + v + -ing + C.
2.1. I am talking with my mom right now.
2.2. Sandra is visiting her parents.
2.3. They are doing the homework assignment.
3. Negative Sentence S + am/is/are + not + v + -ing + C
3.1. I am not going to the game tonight.
3.2. Mike is not cooking.
3.3. You are not studying right now.
4. YES/NO Question Am//is/are + S + V + -ing + C ?
4.1. Am I going to the meeting?
4.2. Is Karla listening to the teacher?
4.3. Are they cheeting on the exam?
5. WH-Question Wh-word + am/is/are + V + -ing + C + ?