What are 'Demonstrative Determiners'?? In simple words, demonstrative determiners are meant to point to a particular noun. They are also used to indicate the position or location of a noun from the speaker's point of view. For example : This, That, These ,Those. When and How to use demonstrative determiners correctly? 1.This - is used to refer to a singular noun that's near to the speaker. For example: This is my pencil. 2. These - refers to plural nouns that are near the speaker. ...