That / Which
Adding a descriptive clause
An Adjective vs. An Modifying Clause (Relative Clause)
| ADJECTIVE | MODIFYING CLAUSE (RELATIVE CLAUSE) |
|---|---|
An adjective (word-modifier) is placed before the noun. |
A modifying clause (relative clause) is placed after the noun. Either that or which joins the modifying clause to the sentence subject. Both that and which are used with inanimate nouns (things). That is used informally as a personal pronoun. |
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trade in (v.) – to give something old as partial payment for something new
Modifiying the Sentence Subject
| JOINING THE SUBJECT OF A MODIFYING CLAUSE | JOINING THE OBJECT OF A MODIFYING CLAUSE | ||||
|---|---|---|---|---|---|
Below, that is the subject of the modifying clause. |
Below, that is in the object position of the modifying clause. You may omit (delete) that in these clauses. |
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SUBJECT The car |
MODIFYING CLAUSE that you drive |
VERB & COMPLEMENT is green. |
SUBJECT The car |
MODIFYING CLAUSE that you drive |
VERB & COMPLEMENT is green. |
The person |
that is inside |
is hiding. |
The person |
that you can't see |
is hiding. |
The car |
which is small |
is green. |
The car |
which you drive |
is green. |
complement – a word, phrase or clause which is necessary in a sentence to complete its meaning
Modifiying the Sentence Object
| SUBJECT PRONOUNS | OBJECT PRONOUNS | ||||
|---|---|---|---|---|---|
Below, that is in the subject position of the modifying clause. Either that or which joins the modifying clause to the sentence o bject. Both that and which are used with (inanimate nouns (things). That is used informally as a personal pronoun. |
Below, that is in the object position of the modifying clause. You may omit that (delete) in these clauses. |
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SUBJECT & VERB Jack drove |
OBJECT the car |
MODIFYING CLAUSE that you bought. |
SUBJECT & VERB Jack drove |
OBJECT the car |
MODIFYING CLAUSE that you bought. |
My neighbor hates |
the car |
that is a gas-guzzler. |
My neighbor hates |
the car |
that you bought. |
gas guzzler – expression for a car that uses a lot of gas, high fuel consumption
Related pages: That vs. Which using commas | Who / Whom using that for people
That / Which
As the subject of the clause
That as the Subject of the Verb in the Modifying Clause (Relative Clause)
| JOIN THE SENTENCES | MAIN CLAUSE | MODIFYING CLAUSE |
|---|---|---|
1. Replace the subject noun in the modifying clause (relative clause) with that or which. (The car is the subject noun.) |
The car is economical to drive. |
The car is very small. |
2. Place the that-clause next to the word it modifies. |
The car |
that is very small is economical to drive. |
3. Add commas if the clause is nonidentifying, adds extra information. |
The Smart Car, |
which is very small, is economical to drive. |
That / Which
As the object of the clause
That as the Object of the Verb in the Modifying Clause
| JOIN THE SENTENCES | MAIN CLAUSE | MODIFYING CLAUSE |
|---|---|---|
1. Replace the object noun in the modifying clause (relative clause) with that or which. (The car is the object noun.) |
The car is economical to drive.
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I want to buy the car. |
2. Move that to the front of the modifying clause. |
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that I want to buy |
3. Insert the clause into the sentence next to the word it modifies – car. |
The car |
(that) I want to buy is economical to drive. |
4. Add commas if the clause is nonidentifying, adds extra information. |
The Smart Car, |
which I want to buy, is economical to drive. |
( ) – optionally omit this; omit (v.) – delete, leave out
Common Mistakes
| ERROR | FIX |
|---|---|
*The car is very economical that holds just two passengers. |
The car that holds just two passengers is very economical. |
*The phone is available that I want to buy. |
The phone that I want to buy is available. |
*The car that I want to buy it is economical to drive. |
The car that I want to buy [it] is economical to drive. |
*The guy which was sitting next to me in the bus was from Ghana. |
The guy who was sitting next to me in the bus was from Ghana. Use who as a personal pronoun
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*Yellow highlighted words are examples of incorrect usage.
Object Pronouns
Omitting That
When can you omit that?
| SUBJECT PRONOUN OF CLAUSE | OBJECT PRONOUN OF CLAUSE |
|---|---|
When that takes the place of the subject noun/pronoun of a clause, it cannot be omitted (deleted). |
When that takes the place of the object noun/pronoun of a clause, it can optionally be omitted (deleted). |
The phone that woke you is
here. |
The phone (that) you dropped is
here. |
( ) – optionally omit this; omit (v.) – delete, leave out
How do you know if that takes the place of an object? (This is a method for simple clauses.)
| THAT is the SUBJECT | THAT is the OBJECT |
|---|---|
When that is followed by a verb, it cannot be omitted. (Because that is taking the place of the subject of the clause.) |
When that is followed by a subject noun or pronoun (e.g., I, we, he, she, they, Jack), it can be omitted. (Because that is taking the place of the oject of the clause.) |
IS THAT FOLLOWED BY A VERB? The car that drives the best is a sports car. |
IS THAT FOLLOWED BY A SUBJECT NOUN? The car (that) we enjoy driving is a sports car. |
They guy that sold Jack his car appears to be honest. ) |
The
guy (that / who)Jack spoke to appears to be honest. |
The driver that possibly hit my car lives next door. |
The driver (that / who) Jack and I possibly hit is angry. |
Try it — Can you omit that ?
Practice 1
Adding an Modifying Clause (Relative Clause)
- Select the response that best completes the sentence.
- Compare your response to the answer by clicking the "check" button to the right.
Practice 2
Omitting the Relative Pronoun
Correct or Incorrect?
- Read each sentence and decide if it is correct. Select your response.
- Read the feedback to compare your response to the answer.
Also see Clause Reduc 1
