1. introducing writing

Subject                   

Verb                       

Complement

I                               

study                        

English (noun)

I                               

don’t understand   

you (pronoun)

His girlfriend            

is                           

smart (adjective)

It                         

isn’t raining               

now (adverb)

A complement may also be a noun phrase, a verb phrase, or a prepositional phrase.

My father                       owns                      

his own business (noun phrase)

My girlfriend                  wants                    

to get married (verb phrase)

The students                are reading            

in the library (proportional phrase)

A complement may also be a combination

I                                 study                      English at Greenhills College (noun + prepositional phrase)

She                           wants                     to get married soon (verb phrase + adverb)