Miriam,
Many thanks for your thoughtful expansion of Pem's analysis. I'll first address the specific questions you've raised, then re-state more thoroughly the case which the Cambridge book is making for the gerund's redefinition.
Consider the following two sentences:
1. I can't stand...
ESL General English Grammar Questions
by
taiwandave
4 yr 157 days ago
Grammar, Verbs, Dates, Constructions, Tenses, Clauses, Nouns, Gerunds, Past Tenses, English Grammar, Genitives, Inflections