Doctors and nurses are essential healthcare professionals.
* Subject: Doctors and nurses
* Verb: are
The hospital needs more doctors and nurses.
* Subject: The hospital
* Verb: needs
* Object: doctors and nurses
Doctors and nurses, working together, provide excellent care.
* Subject: Doctors and nurses
* Verb: provide
* Object: excellent care
In all of these sentences, "doctors and nurses" could be the subject, depending on the structure of the sentence.
Let me know if you have a specific sentence you'd like to analyze!