Non-Defining Relative Clauses - English Grammar Explained

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Person 1: So my new boyfriend is tall  and he’s so funny and very clever,  

he has the most beautiful green eyes and he loves  to go to museums, which is why we get on so well.  

We actually went to a museum on our first date and  it was so romantic. We just think exactly the same  

thing about everything. So yeah, he’s really  kind and he teaches children to play football  

on Saturday mornings and I usually go to watch  so we can go out for lunch afterwards. Anyway,  

what was your question again? Person 2:  

What does he do for work? Person 1: Oh, he’s a dentist.

Giving more information than necessary is  something we do quite often. Sometimes you just  

decide to give more detail or you really want  someone to understand more about a situation.  

When giving non-essential extra informationwe use a non-defining relative clause.  

Non-defining means that this extra information  does not change the meaning of the sentence,  

it is purely used to give more detail. If you need to add an essential piece  

of information into a sentence, you can usedefining relative clause instead. There’s already  

a video on my channel about those so I will put  a link in the description so that you can watch  

that one next and learn the differences. A sentence which includes a non-defining  

relative clause must also have a main  clause, which is split into two parts  

after the subject. Let’s use the example ofmeal which is delicious and is also vegetarian

The main clause would beThe meal is delicious’.  The subject in this sentence is themeal’, so we  

put the non-defining relative clause in the middle  of the main clause, after the subject to getThe  

meal, which is vegetarian, is delicious’. The word  ‘whichin this sentence is a relative pronoun.  

In the case of objects, places and things, you can  use the wordwhich’. However, when the subject  

of the sentence is a person, you should use the  wordwhoas the relative pronoun. For example:  

My sister, who is younger  than me, works in a school’. 

When putting an additional clause  into the middle of an existing clause,  

it is important to use commas to separate them  so that the sentence is easier to read and  

understand. In this case, you should put a comma  on either side of the non-defining relative clause  

when writing it down to show this and youll  often hear Native English speakers naturally  

pausing in the place of these commas to make  it clear when speaking and listening too

Our wedding, which is in Julyis going to have 120 guests

Their French teacher, who is new to  the school, is absolutely brilliant

My cooking skills, which are very limitedhave improved since I bought this cookbook

So now you know all about how to  add additional information using  

a non-defining relative clause  in the middle of a sentence.  

It’s time to put that knowledge to the test. I am  going to give you 5 people or objects and I would  

like you to describe them in the comments usingsentence with a non-defining relative clause, like  

the ones we have been practicing. Your answers  can be real or you can use your imagination to  

describe things that don’t really exist butwould like you to be as creative as you can

First of all, I would like you  to describe your ideal pet

Next, I would like you to describe the  most important teacher you had at school

Thirdly, I would like you to  describe your favourite city

Now I would like you to describe  your childhood best friend

Lastly, I would like you to  describe your favourite meal

So there were 5 sentences for you to  write in the comments for your homework.  

I’m looking forward to reading them and  seeing your new English skills in action  

with your non-defining relative clausesTake care for now. I'll see you soon