Different helping verbs are used for different purposes in sentences. One of their main functions is to situate the action of a sentence in a particular aspect of time. The two main aspects that helping verbs play a role in are the progressive aspect and the perfect aspect.
Baastrup syndrome is characterized as the of abnormal contact or rubbing between adjacent spinous processes. 0 Baastrup Syndrome patients report severe fatigue (0%). 2  1 Baastrup Syndrome patients report moderate fatigue (100%). 3  0 Baastrup Syndrome patients report mild fatigue (0%). 4  0 Baastrup Syndrome patients report no fatigue (0%).
Lambert-Eaton Myasthenic Syndrome (LEMS) represents one of the distinct autoimmune disorders at the neuromuscular junction. In 1956, Lambert and coworkers reported 6 patients with atypical myasthenia, lung carcinoma, and a specific response to repeated nerve stimulation differing from myasthenia gravis [1].