'These' and 'those' are called demonstratives. They are used to show the 'distance' or 'nearness' between us and the noun.
'These' is the plural form of 'this'. And the plural form of 'that' is 'those'.
Difference between These and Those
- These is used to refer to a plural noun near to us (physically or temporally)
- Those is used to refer to a plural noun far from us (physically or temporally)
'These' and 'those' can be both subjects and objects of our sentence.
Here, 'these' is the subject of our sentence.
I've made my decision. Let's buy
Here, 'these' is the object of our sentence.
Here, 'those' is the subject of our sentence.
Do you remember
Here, 'those' is the object of our sentence.
Can 'Them' Be Used as a Demonstrative Pronoun?
'Them' is an object pronoun. It is the accusative form of the pronoun 'they'. In formal standard English, 'them' cannot be used as a substitute for a demonstrative pronoun. But when 'these' and 'those' are used as an object pronoun, it is interchangeable in informal and colloquial language.
'Them' cannot grammatically be used as a demonstrative pronoun. But it is often used in informal language.