Among many types of sentences one type is demonstrative sentences. The name may not be very clear as to the meaning and usage of declarative sentence sin English language as demonstrative means to demonstrate or represent.
I will discuss in detail what demonstrative sentences means.
Demonstrative sentences are the ones that contain demonstrative pronouns in them.
A pronoun that point to a specific thing in a sentence that is any item in space and time is called a demonstrative pronoun. These pronouns can exist as singular or plurals.
This, that, these or those
The above pronouns are examples or demonstrative pronouns.
The things in near distance and time are represented by this and these. The things in far off distance and time are represented by that or those.
That was my father’s car.
The above sentence is a demonstrative sentence as it contains a demonstrative pronoun i.e. that.
That in the above sentence is a singular demonstrative pronoun that represents far distance and time things i.e. car.