Final answer:
A patient with global aphasia will not be able to form understandable words or comprehend spoken language, as this condition severely affects both expressive and receptive language abilities due to extensive brain damage.
Step-by-step explanation:
A patient diagnosed with global aphasia is likely to experience severe impairment in both the production and comprehension of language. This condition results from extensive damage to the language centers of the brain, leading to a breakdown in the abilities associated with expressive and receptive functions. Therefore, the patient will be unable to do which of the following actions: c) Form words that are understandable or comprehend the spoken word. Global aphasia affects the ability to form coherent words and sentences (expressive aphasia), as well as the loss of the ability to understand received language (receptive aphasia).