Is few a linking verb

Answer 1

No.

A linking verb links the subject of a sentence with the information that it's about.

List of Linking Verbs:

to be (is, am, are, was, were, has been, have been, had been, is being, are being, was being, will have been, etc.)to become (become, becomes, became, has become, have become, had become, will become, will have become, etc.)to seem (seemed, seeming, seems, has seemed, have seemed, had seemed, is seeming, are seeming, was seeming, were seeming, will seem)