Relative clauses: defining & non-defining clauses

Relative Clauses: Defining & non-defining

DEFINING	WHO (people) WHOM (people) THAT (people & thing) WHOSE (possession) WHICH (thing) WHERE (place)  WHEN (time)	PROVIDES IMPORTANT INFORMATION	RELATIVE PRONOUN CAN BE OMITTED (if it is not  the subject of the clause)
NON-DEFINING	WHO (people) WHOM (people) THAT (people & thing) WHOSE (possession) WHICH (thing) WHERE (place)  WHEN (time)	PROVIDES EXTRA INFORMATION	RELATIVE CLAUSE CAN BE OMITTED