Is "in" necessary after the word "believe"?
Native speaker’s answer
Rebecca
For the purpose of what the speaker is saying, "in" is necessary after "believe" here. "Believe" and "believe in" have different meanings. "Believe in" means you have faith in something, and "believe" means you accept something as being true. Ex: I believe in you, you can do this. Ex: I believe Santa Claus is real.