Adjective clauses are used in
two ways: as necessary or unnecessary clauses. Knowing the difference
can help you punctuate correctly and avoid confusion. They, as are all
adjective forms, good ways to increase detail in your writing.
Necessary Adjective Clauses
These clauses must be included to make sentence clear.
All students who do not study will fail the examination. (In this case, only the students who do not study will fail, not all students.)
The washrooms that are on the second floor are for men only. (without the clause, we wouldn't know where the washrooms are)
Unnecessary Adjective Clauses
If the clause is unnecessary, it has commas around or before it.
My son, who is very tall, came into the living room.
I think he will be as tall as his grandfather, who was over six feet tall.
Note: An adjective clause is
necessary if there is not enough information about the noun. Sometimes,
if we already know the noun we must call extra information unnecessary.
Brad, who is our English teacher, is explaining adjective clauses.
Every family has an eldest person. Who is that person in your family? Describe this person using both necessary and unnecessary adjective clauses at least twice. Write a short paragraph.
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