What is the present progressive tense of "study"?

He is studying.

http://www.englishbaby.com/lessons/grammar/present_progressive_tense

So, if I were to use it in a sentence, this is the form I would use?

"Many scholars are studying the effect of modern inventions on people's lifestyles."

Right.

The present progressive tense of "study" is "studying." To understand how the present progressive tense is formed, let's break it down:

1. Start with the base form of the verb: "study."
2. Add the present tense of the verb "to be" before the base form. In this case, the present tense of "to be" is "am," "is," or "are" depending on the subject. For example:
- I am studying.
- He is studying.
- We are studying.

So, to form the present progressive tense, you use the present tense of "to be" followed by the base form of the verb + "ing."