An auxiliary verb, also referred to as a helping verb, is one that is the part of a verb phrase that helps the main verb. As part of a verb phrase, a helping verb might show when an action occurs or whether the action is required. Let's look at a few examples to get a sense of just what auxiliary, or helping verbs, do.
The one reason that the Battle of Barbarossa became a turning point in the war was the number of casualties that the German army suffered. The Russians also suffered a huge number of casualties, but still they were able to hold their ground. The German army failed to push forward and ultimately they had to resort to attacking the United states.
Corruption even extended to the federal government where as thirty percent of them were against Prohibition. One of the main reasons why Prohibition ended was because of the St. Valentine Massacre. This was one of the biggest gang fights ever whereas Al Capone's men killed seven gangsters. This was the turning point. People saw that Prohibition was causing so much gang violence and people wanted to give up the 'noble experiment'. Some women went out in the streets protesting for the end of Prohibition the same as the women who went up to pass Prohibition.