1. Subject + Linking Verb + Complement ( S - LV - C)

 The first basic sentence pattern:

>  the S–LV–C

~ this includes a subject, a linking verb, and a complement. 

✔  Linking verbs are the types of verbs that join the subject with an adjective or another noun. Some commonly used linking verbs include be, am, are, is, was, were, and seem.

✔  We can also use sense verbs to make this type of sentence pattern. A sense verb is a verb that describes one of the five senses: sight, hearing, smell, touch, and taste.

✔ A subjective complement is a word or a group of words that often follow a linking/sense verb. Subjective complements can either be nouns, pronouns, or adjectives.

1. She looks happy.

S: She

LV: looks

C: happy

2. Orange and Yellow are bright colors.

S: Orange and Yellow

LV: are

C: bright colors

3. The food tastes bad.

S: The food

LV: tastes

C: bad

MORE EXAMPLES:  

Monty is an engineer. [Monty = an engineer]

Mara seems nice. [Mara = nice]

They will be okay. [They = okay]

Rachel is ditzy.

Linking verb: is

[The adjective ditzy is a subject complement modifying the subject Rachel. They’re connected by the linking verb is.]

She seems very intelligent.

Linking verb: seems

It was her car I saw last night.

Linking verb: was

They were the ones who stole the money. 

Linking verb: were

Life would be extremely difficult and dark without you.

Linking verb: would be

Without anyone knowing why, the movie became a hit.

Linking verb: became

Do you agree that Stanley Kubrick is an overrated director?

Linking verb: is

She is the faithful who claims that nothing is impossible to those who believe.

Linking verb: is

[The subject complement the faithful modifies the subject she; The subject complement impossible modifies the subject nothing.]

 

NOTE: Prepositional phrases can also serve as subject complements. 

Prepositional phrases (in bold) as subject complements: 

Sometimes, your thoughts are beyond this world.

Linking verb: are

The message is of the utmost importance.

Linking verb: is

She looks out of her mind.

Linking verb: looks

Practice Identifying Linking Verbs & Subject Complements:

Identify the subject, its subject complement, and the linking verb in each sentence. Once identified, bolden the subject complement and italicize the subject. List out the linking verbs as before.

1. Our teacher is also a volunteer firefighter.
2. The place feels unwelcoming and eerie. 
3. Why did he become aloof?
4. His favorite student has always been her.
5. The past went forgotten.

https://qqeng.net/Learning/basic-sentence-patterns-in-english/

https://curvebreakerstestprep.com/linking-verbs-subject-complements-examples-definition/