Subject + IS/ARE + Verb (continuous form)
The present continuous tense is most often used for the following:
- For actions happening now
- For future arrangements
- To express annoyance at repeated actions
- He is sleeping.
- I am visiting grandpa in the afternoon.
- You are always coming late for the meetings!
Difference between the present simple and the present continuous:
Things which are always true (Water boils at 100 degrees)
Habits or things we do regularly (I drink coffee every morning)
To talk about what happens in books, plays and films (At the end of the book, the detective catches the killer)
Things which are happening at the moment of speaking (The water is boiling now, so you can put in the pasta)
Temporary or new habits (I'm drinking too much coffee these days because I'm so busy at work)
To talk about people in pictures and photos (In this photo, my mother is walking beside a lake)