Subject, predicate, and objects
Subject, predicate, and objects are the three different components of a sentence. The subject of a sentence is the person, place, thing, or idea that is doing something. In a sentence, the subject is the person or a thing who or which carries out the action. A sentence cannot exist without the subject. In a sentence, subjects are nouns or pronouns. The subject of a sentence can be easily traced out, if we can find the verb. If we ask the 'who' or 'what' of the sentence, the answer will point us to the subject, while the predicate is the verb, and the object is any noun or concept that is part of the action of the subject. In other words, in a sentence, the object is the entity that is acted upon by the subject, the object is the receiver of the verb.
The subject is one of the basic parts of a sentence. The other basic part is the predicate. The predicate is usually the larger part of a sentence and it informs us some necessary information about the subject, about the action that the subject is performing, or it describes the subject. Apart from the subject, the remaining part of a sentence is the predicate.
So, in a nutshell we can say, there are three components of a sentence, namely, subject, predicate and object. The subject is the "who" or "what" of the sentence, the predicate is the verb, and the object is any noun or concept that is part of the action of the subject.
For clarification of the above, let us take the sentence, "The teacher is teaching the students". In this sentence, 'teaching' is the verb, it is the action that is being carried out. Now, if you ask, 'who is teaching'? The answer will be 'the teacher'. So, in the sentence 'the teacher' is the subject, and the other part of the sentence, 'is teaching the students' is the predicate Again, in the sentence, the one who is taught, the receiver of the action (teaching), is the students, hence 'students' is the object.