The first concerns traditional grammar , which tends to view a predicate as one of two main parts of a sentence , the other part being the subject ; the purpose of the predicate is to complete an idea about the subject , such as what it does or what it is like .
The predicate in traditional grammar is the second part of a clause or sentence , the first being the subject . A predicate completes an idea about the subject , such as what it does or what it is like .