PRESENT CONTINUOUS

We use it to talk about the activities that are happening in the present moment, at this right moment.

I'm working now. - I am working right now.
The clue gives us the "right now", which frames the situation in the present point.

I will fly to London on Saturday. - Flight to London on Saturday.
In the case of planes that are safe and imminent, we also use the present continuous.

Structure of the present continuous negative

Structure of the present interrogative continuum

Present continuous affirmative structure