Hypotactic Verbal Group Complex: Clause Function

Halliday & Matthiessen (2004: 497):

Like a paratactic verbal group complex and a simple verbal group, a hypotactic verbal group complex … serves only one set of functions in the clause (and only in the clause, since it cannot be embedded on its own): it is the Process in the experiential transitivity structure, and the Finte (…) Predicator in the interpersonal modal structure.