Common types of of reference words
Personal pronouns: it, they, them, his, him:
- These are Kim and Jack. They are married, but do not get along well
- I think your teacher is nice. Why don’t you like him?
Demonstratives: this, that, those ->
Those people over there are colleagues of my mother
Relative pronouns:
which, whose, where ->
Jim works for an organization which helps startup new companies.
Determiners: some, others, another
-> There are so many apples left. Can I have some?