How to understand English Sentence or Structure

taken from: red-grey.co.uk

Every languages has its own uniqueness as well as English language. In English grammar, structure points to how the group of words combines and builds a full meaningful sentence. All patterns that we found in the structure of English language point to two mainkinds of sentences; Verbal and Nominal sentence. Therefore, the discussion should be based on these two sentences.

Sentence Structure 1: Verbal Sentence

Verbal Sentence is a sentence which contains one subject and bare-infinitive. (Notice that bare-infinitive, in this case (author's terminology), can be present verb, past form verb and past participle or the third verb (see. Irregular/regular verb).
For example:
I work (work=Present verb)
I worked (worked=Past form verb)
I have worked (have+worked=Past participle)



When there is other group of words beside the main pattern (subject & verb), treat them as one group of other rules. This makes systematic analysis which directs you to the details of a discussion.

For example:
I work for CV.Mediatama Nusantara

The words /for/ and /CV.Mediatama Nusantara/ is prepositional phrase which modifies the existence of a complement. 

Firstly, we study the words /I work/ which is separated with the words /For CV.Mediatama Nusantara/. Second,  we study how the both of groups of words are combined and how they both make one sense of 'meaning'.

As it is said that the complement is placed after the linking-verb (e.g. in nominal sentence) and after preposition which modifies the intransitive verbs (e.g. go, sleep, dance, etc).

Sentence Structure 2: Nominal Sentence

Nominal Sentence is a sentence which contains one subject and be (as a structural-meaning-verb). (Notice that be, in this case (author's terminology), is as a verb which requires one complement. The complement can be a noun or noun phrase, adjective, adverb (of place or of time) and pronoun.

For example:
I am tired.

The words /I am/ and /tired/ can not be discussed separatedly. The complement will not have full meaning when there is no words /I am/. In this case, The words (I am and tired) build one full meaning.