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Identifying a thing, and when the pronoun can be omitted.
Why you specifically
The rule
Defining relative clauses tell us exactly which person or thing we mean. For things, that is very common, and which is also possible in some defining clauses. When the relative pronoun is the object of the clause, it can often be omitted: The book I bought = The book that I bought.
The trap
I need the book which you lent me.
I need the book that you lent me.
In a defining relative clause, that can identify a thing. This clause is necessary to show which book I mean.
The phone which I bought yesterday is already broken.
The phone that I bought yesterday is already broken.
That is correct in a defining clause for a thing, especially in everyday English. It tells us which phone we mean.
The jacket which I bought is too small.
The jacket I bought is too small.
In defining relative clauses, the object pronoun can often be omitted. This is common in spoken and written English.
The book which is on the table belongs to me.
The book that is on the table belongs to me.
That can be the subject of a defining relative clause when it refers to a thing. Here it identifies the book.
Prove it
9 drills
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