Other
Match the Memory: Formal vs Informal Language
Match the Memory Interactive game where players match a word to either formal or informal language.
Grammarly
Grammarly Blog: Anymore vs. Any More
This page explains the use of "anymore" in informal writing, but in formal writing and anywhere else, "any more" is preferable. Examples are provided.
Sophia Learning
Sophia: One vs. You
This slideshow lesson focuses on the use of "one" and "you." It defines each, explains the differences, tells when to use each, and provides examples.
Grammarly
Grammarly Blog: Anyway, Anyways, or Any Way
This page focuses on formal and informal use of "anyway," anyways," and "any way." Anyways is very infomal and should not be used; "anyway" is correct to mean "in case of" and "any way" should be used for all other situations. Examples...