Is there any gerund in the "sentence While preparing for the speech, Joe couldn't hep but worry about his entrance"?
Do you mean the verb in the past continuous tense?Thus, I think most people would classify that -ing word as a present participle.
I do not see any gerund, only verbs.
***** NOT A TEACHER *****
Thank you for your note.
(1) Perhaps we don't use the same books.
(2) My book tells me that the term "present participle" applies to both the present progressive (He is preparing) and the past progressive (He was preparing).
(3) All the persons who have answered this question agree that there is no so-called "gerund" in that sentence.
Have a nice day!