Write a detailed descripion of ENGLISH LINK VERBS?plz answer in detail

Linking verbs express no action, they express a
state of being.  They link the subject of the sentence to some
information about the subject.  The completion of the sentence
comes from a complement:  most likely a predicate noun which will rename the subject; or
a predicate adjective which will describe the subject. 

All
forms for "to be" are linking verbs when they are the MAIN verb of the verb
phrase:

am, is are, was, were, be, being,
been

I am
tired.  "am" links the subject, I, to an adjective about me, that I am
tired.

Sue has been the president of the
club.  "been" links the subject, Sue, to a predicate noun, president,
that renames the subject. [Has is a helping verb which serves to clarify
tense.]

There is another list of verbs that are
sometimes linking verbs and sometimes action verbs.  In these
sentences you must consider whether the subject of the sentence is actually DOING the
verb (action verb), or if the subject is merely being linked to a description.  Here is
a list of these verbs:

appear, look, feel,
prove, grow, remain, taste, smell, turn, sound, stay,
seem, become 

I look tired. 
-- linking verb.  The subject, I, is linked to a description of me, that
I look tired.

I look for good deals when I
shop. --action verb.  The subject of sentence is actually
doing the verb.  I use my eyes to look around the
store.

I tasted everything at the party. --
action verb.  The subject of the sentence is actually putting food in his
mouth and tasting it.

The food tasted really
good. -- linking verb.  The subject isn't doing anything; the verb is
merely linking the subject to a
description.

I could smell her perfume.  --
action verb

Her perfume
smelled awful. -- linking
verb

I grow tomatoes in the
garden. -- action verb

I grow
weary of the student's complaints. -- linking
verb

I felt the raindrops on
my head. -- action verb

I felt
sure of my win. -- linking verb