Look at these examples to see how defining relative clauses are used.
Are you the one who sent me the email?
The phone which has the most features is also the most expensive.
This is the video that I wanted to show you.
The person they spoke to was really helpful.
Try this exercise to test your grammar.
Read the explanation to learn more.
Grammar explanation
Relative clauses give us information about the person or thing mentioned.
Defining relative clauses give us essential information – information that tells us who or what we are talking about.
The woman who lives next door works in a bank.
These are the flights that have been cancelled.
We usually use a relative pronoun or adverb to start a defining relative clause: who, which, that, when, where or whose.
who/that
We can use who or that to talk about people. that is more common and a bit more informal.
She's the woman who cuts my hair.
He's the man that I met at the conference.
which/that
We can use which or that to talk about things. that is more common and a bit more informal.
There was a one-year guarantee which came with the TV.
The laptop that I bought last week has started making a strange noise!
Other pronouns
when can refer to a time.
Summer is the season when I'm happiest.
where can refer to a place.
That's the stadium where Real Madrid play.
whose refers to the person that something belongs to.
He's a musician whose albums have sold millions.
Omitting the relative pronoun
Sometimes we can leave out the relative pronoun. For example, we can usually leave out who, which or that if it is followed by a subject.
The assistant [that] we met was really kind.
(we = subject, can omit that)
We can't usually leave it out if it is followed by a verb.
The assistant that helped us was really kind.
(helped = verb, can't omit that)
Do this exercise to test your grammar again.
Thank you for making it clear! I do appreciate your help.
I have a question about changing a/an to the in some relative clauses.
eg. Our principal wants to see an architect. He designed our school library.
ans. Our principal wants to see "the" architect who designed our school library.
why we need to convert the "an" to "the"?
eg. I met an old lady. She was one hundred and two years old.
ans. I met "an" old lady who was one hundred and two years old.
why we do not need to convert that "an" to "the"
there are more eg for not converting the "a/an" to "the"
-There was a one-year guarantee which came with the TV.
-He is a musician whose albums have sold millions.
-He called a plumber who he found online.
-They ate at a restaurant that serves only vegan dishes.
-We found a shop that sold old records.
why?
Hi Zozary,
Using "the" normally means that the speaker thinks the listener knows which particular thing he/she is referring to. Often, this is because there is only one of that thing existing in that local context.
If you say this:
It means that there is only one old lady of that age in this local context, and both the speaker and listener know that. Maybe she is a famous old lady in that town, for example. The sentence is grammatically fine. However, in ordinary circumstances, we probably do not know for sure that there is only one lady of that age, and the speaker probably cannot assume that the listener knows who the old lady is. So, it's more likely to say:
Often, when the speaker mentions something for the first time in the conversation, the speaker will use "a/an" if he/she introduces some new information (e.g., "I met an old lady" - it's a new conversation topic) and the speaker thinks the listener doesn't know which exact person/thing it refers to.
About your other examples:
Again, you could use "the" in any of these sentences, if there is only one thing in that context (e.g. We found the shop that sold old records - if there is only one shop selling old records in that town) and you assume that the listener knows this too.
I hope that helps to understand it.
Jonathan
LearnEnglish team
So, we can use either "a/an" or "the" in the above sentences.
The only difference is that using either of them depends upon whether the listener gets exactly what the speaker is trying to mention which or not.
When both the speaker and the listener get what they are talking about, we use "the".
If not, we use "a/an".
That problem has been in my mind like forever.
Thank you for clearing that one problem in my mind. I really appreciate your help, Sir.
Zozary
''the restaurant .... we often go to overlooks a beautiful lake''
-which
- where
What should I choose? and why I should use it
Hello thebaongoc,
The correct answer here is 'which' because you have the preposition 'to' in the sentence. We can say 'to which' but not 'to where'.
If you remove 'to' then 'where' is possible:
Peter
The LearnEnglish Team
They ate at a restaurant ___ serves only vegan dishes.
that
where
which
–
Why "where" is wrong. We refer to a place actually!
Hi Ali_H_Ahmad001,
We do use "where" to refer to a place, but it introduces a clause (i.e., a subject and a verb). So, if you want to use "where" in this sentence, it should be:
We can also think of a restaurant (or any other place) as a thing, so it's also correct to say:
I hope that helps to understand it.
Jonathan
LearnEnglish team
Grammar confusions with the following sentences:
1. Don't drink more (wine) than is good for your health.
2. There are few books on the shelf but I know.
3. He drinks more than expects.
Questions:
1. Is sentence 1 a relative clause, based on the grammar system?
2. Can "than" be a relativizer to introduce a relative clause? And are there any other less common relativizers except common ones like: that, which, who, when, where, pre+whom, whose+n, why.
3. Analyze the sentences listed grammatically plz, especially on what kind of clause they belong to.
I was told by some expert that sentences 1&2 were both relative clauses where "than" and "but" function as relativizers since they introduce the subordinate clause, complete the subordinate clause as subject or object. But i just think: sentence 2 is just a compound sentence with one object omitted, and sentence 3 is an adverbial clause with both subject and object in subcordinate clause omitted, based on some conventions of English. Sentence 1 is just intuitively correct but grammatically incomprehensible to me, and I can accept it as a relative clause introduced by "than" reluctantly.
Hello Pershing,
1. This construction (than + verb phrase without a subject) is one which generates a lot of debate. For example:
https://english.stackexchange.com/questions/19423/he-does-more-than-is-necessary
The construction is only used with the verb 'be' (here: 'is'). You cannot replace it with any other verb, though it doesn't have to be an adjective following it. For example:
but
Since the construction only works in such narrow bounds I would be minded to see it as an atypical but correct form.
Sentence 2 does not appear correct to me. You should use 'that' or 'which' in place of 'but'. Alternatively, you could say '...but this I know.' However, this changes the meaning.
Sentence 3 is also not correct. You need a subject ('...than he expects', for example). Unless, that is, you want to say 'He drinks more than (he) expects', in the sense that the amount of drinking he does is greater than the amount of expecting he does. This would be a rather odd statement but possible. In this case 'than' is functioning as a conjunction.
2. No. See above for the explanation of 'that' in sentence 1.
3. I think I've summarised the constructions above.
Peter
The LearnEnglish Team