This is an excerpt from a dialogue with a psychologist Elizabeth Brondolo, PhD in APA(Link is here; https://www.apa.org/research/action/speaking-of-psychology/stress-health):
"And I also really love working with the students, being able to generate new hypotheses and testing them out in the field."
What is the Subject of "being able to" and "testing them out" in this sentence?
Is the Subject "I" or "students"? How can you tell?