Question

How do you teach present progressive?

Answer 1

See below

Explanation:

The present progressive has the ending with -ing.

To teach it, I would start suggesting a couple of words the students know and learn already such as the one listed below:
-Walk
-Eat
-Drive
-Clean
-Run

Then you add the -ing to the end of each word as shown above:

-walking
-eating
-driving (drop the e as it won't make any sense of keeping the "e" in drive)
-cleaning
-running