Each sentence is made up of essentially of the components of

1. INTERROGATIVE
2. SUBJECT
3. OBJECT
4. AUXILIARY
5. VERB
6. COMPLEMENT

We will see about each component one by one:

1. INTERROGATIVE: All sentences are in the two forms that is one may ask any question and the other may tell the answer. So one sentence will always be a question or an answer. If a sentence is a question, it should have one INTERROGATIVE part in it. Interrogative utterances are expressed in the words, such as

1. WHAT
2 WHICH
3. WHO
4. WHOM
5. WHOSE
6. WHERE
7. WHEN
8. WHY
9. HOW
10. HOW MUCH
11. HOW MANY
12. HOW LONG
13. HOW FAR

INTERROGATIVE PRONOUNS: In the above list of Interrogative words WHAT, WHICH, WHO, WHOM, WHOSE, WHERE, WHEN, and WHY are called interrogative pronouns.

INTERROGATIVE ADVERBS: In the above list of Interrogative words HOW, HOW MUCH, HOW MANY, HOW LONG, and HOW FAR are called Interrogative adverbs

2. SUBJECT: HE, SHE, IT, I, WE, YOU, and THEY-these words (PRONOUN) or any NOUN in a sentence especially in the beginning of the sentence form the SUBJECT part. A SUBJECT may be single in number or multiple in number, but there is only one TRUE SUBJECT. All other parts of speech in a sentence will support the subject part. A verb or an auxiliary verb will always come after the subject. All parts of speech in a sentence will focus towards this subject only and a SUBJECT is essential for a sentence.

3. OBJECT: HE, SHE, IT, I, WE, YOU, and THEY-these words (PRONOUN) or any NOUN in a sentence especially in the end of the sentence form the OBJECT part. An OBJECT may be single in number or multiple in number, but there is only one TRUE OBJECT. All other parts of speech in a sentence will support the object part. A verb or an auxiliary verb will always come before the object. All parts of speech in a sentence will target towards it. One OBJECT is essential for a sentence.

4. AUXILIARY: This is the wife of the verb. Yes, we can say AUXILIARY is the wife of the VERB. They both always must come in a sentence. They act as one unit. Even in some sentences verb or auxiliary may come separately, but in fact in those sentences the verb or auxiliary is making it quiet while the other is talking. But they act as one unit always. We can say an auxiliary is the assistant or helper of a verb. In English language, there are 15 words can act their own and act as verbs. They have the tendency to work both, as a verb or as an auxiliary. We can consider them as a verb in a sentence when they work lonely.

Example:

I AM a boy.

Here AM works as an auxiliary for the hidden verb BE, or we can consider AM as an separate verb, which means BE.

See the list of AUXILIARIES that can work separately in a sentence as a verb:

IS, AM, WAS, HAS, HAVE, HAD, DO, DOES, DID, BE, ARE, WERE, CAN, WILL, MAY,

See some examples:

1. I NEED your help.

2. Where ARE you now?

3. I HAVE only one pen.

4. I DID that project.

5. KEEP it up.

6. BE patient.

But these below auxiliaries cannot be used separately. They can be used with other verbs to give a meaning.

BEEN, BEING, COULD, SHALL, SHOULD WOULD, MIGHT, MUST, NEED, KEEP, KEPT, USED TO, OUGHT TO, GOING TO, DARE, NEVER

5. COMPLEMENT: This gives a sentence complete meaning. Complement in a sentence will be the answers for the interrogative questions. An adverb will always act as a complement in a sentence. Interrogative questions in a sentence such that HOW, WHY, WHERE, and WHEN, and the answers for these questions in a sentence will be the complement. This has no connection with the verb or auxiliary verb in a sentence.

Examples:

1. I am going to the temple to pray god.

In the above sentence,
I - is the subject.
Am - auxiliary verb
Going - verb
To the temple - subject
To pray god - is the complement

To pray god gives us the answer in the sentence of WHY, and to pray is an adverb, and the complement is giving a complete answer.

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