As a matter of fact ponies in Equestria speak English in the show. So let them speak more improved and interesting English than people on Earth.

For example, they may have two more future tenses: distant future and improbable future. The distant future is used to describe something that a speaker doesn’t expect to see alive. Example: The sun wess stop someday. The improbable future is used when a speaker doesn’t expect something to happen at all. Example: Celestia weast be sent to sun.

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