He must like studying calculus.

Whats the noun function?

4 answers

What is the gerund phrase?
He must like
Nope.

"Recognize a gerund phrase when you see one.
A gerund phrase will begin with a gerund, an ing word, and will include other modifiers and/or objects. "


http://www.chompchomp.com/terms/gerundphrase.htm
Do you understand what Ms. Sue posted for you? Especially this??

... an ing word ...

??