A pronoun is a word we use instead
of other or others.
RELATIVE pronouns are used in
relative clauses instead of an antecedent which will appear in the main clause.
Those employed in Non-Defining
clauses can be used in Defining clauses, but not the other way.
They
must fulfil compulsory one of the following three functions within the
subordinate clause: SUBJECT, OBJECT (Direct Complement or Indirect Complement)
and POSSESSIVE (Determiner within a noun phrase or Pronoun).
The
antecedent can be either personal (or domestic animal) or non-personal.
Those
compounds will always have an emphatic value
DEFINING or RESTRICTIVE RELATIVE CLAUSES
SUBJECT OBJECT POSSESSIVE
Personal WHO / THAT WHOM / THAT WHOSE
(WHO
+ prep)
Non-Personal WHICH
/ THAT WHICH / THAT WHOSE / OF WHICH
NON-DEFINING or AMPLIFYING RELATIVE CLAUSES
SUBJECT OBJECT POSSESSIVE
Personal WHO WHOM WHOSE
(WHO
+ prep)
Non-Personal WHICH WHICH WHOSE / OF WHICH
COMPOUND PRONOUNS and ADVERBS
NORMAL WHOEVER WHICHEVER WHATEVER
EMPHATIC WHOSOEVER WHICHSOEVER WHATSOEVER
ADVERB WHENEVER (WHENSOEVER) WHEREVER (WHERESOEVER)