Parents shouldn’t give up helping their children 中的help为什么要加ing

help要加ing原因是：前面的动词短语 give up 经常搭配名词、代词、动名词作宾语,接动名词时即,give up doing sth.放弃做某事.
Parents shouldn’t give up helping their children
句意：父母不应该放弃帮助他们的孩子.
The young shouldn't give up taking care of the old.
年青人不应该放弃照顾老年人.