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%).
Sjogren's syndrome. Sjogren's syndrome is a chronic autoimmune disorder. The body's immune defenses attack the salivary glands, the lacrimal glands (glands that produce tears), and occasionally the skin's sweat and oil glands. Most people with this disease are women who first develop symptoms during middle age.