What do they do? What are they doing?

SIMPLE PRESENT vs. PRESENT 

PROGRESSIVE

Check out this video for a better comprehension:

Daily routine or just for a limited period of time?

Do you want to talk about a daily routine? Or do you want to emphasis that something is only going on for a limited (rather short) period of time?

Simple Present	Present Progressive
daily routine Bob works in a restaurant.	only for a limited period of time Jenny is working in a restaurant.

USE

In general or right now?

Do you want to express that something happens in general or that something is happening right now?

Simple Present	Present Progressive
in general (regularly, often, never) Colin plays football every Tuesday. present actions happening one after another First Colin plays football, then he watches TV.	right now Look! Colin is playing football now. also for several actions happening at the same time Colin is playing football and Anne is watching.
Signal words
always every ... often normally usually sometimes seldom never first then	at the moment at this moment today now right now Listen! Look!

HOMEWORK!

Click on the link below and write the correct sentence in your notebook-

- https://www.ego4u.com/en/cram-up/grammar/simpre-prepro/exercises

- https://www.ego4u.com/en/cram-up/grammar/simpre-prepro/exercises?ex02