Posessive cases for adjectives
 

:confused: Hello:
Let me try to explain my doubt. Sometimes it seems that the apostrofe is optional such as in the following example: The patient was sent to the Specialist Hospital (one could also say Specialist´s Hospital or
Hospital of Specialists).
Thank you,
Miriam
Some people read my request but no one answered it. Snif, Snif.

Tricky question.

'Specialist Hospital' specialist would be an adjective, therefore it wouldn't need an 's.

in these cases "Specialist´s Hospital or Hospital of Specialists" specialist is a noun and therefore could have an 's.

Hope that helps and sorry about the late reply.

eric