#Common mistakes Misuse of This for These. Dont say: This errors are sometimes made by foreigners. Say: These errors are sometimes made by foreigners. This changes to these if the noun that follows is in the plural. Note: Also avoid the use of this instead of the personal pronoun. John had the book but he gave this to his brother should be John had the book but he gave it to his brother. 42 viewsRohullah Hassani, 09:08