What's the difference between "back to" and "back in"?
Native speaker’s answer
Rebecca
The preposition "to" cannot be used with the verb "to be" in English. You can't "be to" somewhere, but you can "be in" a place. If you wanted to use "back to" you would have to use the verb "to go". Ex: I just wanted to let you know I AM *back in* the city for 2 weeks! Let's meet up. Ex: She WENT *back to* Seoul last month for a client meeting.