Can a single word form a proper sentence? Or just on informal occasions?
Native speaker’s answer
Rebecca
Yes. A single word can form a proper sentence. Most of the time, one word sentences are a command or a question, where the subject "you" is implied and understood. However, the way it is used here, is technically grammatically incorrect. Here are examples of one word sentences. Ex: Go! Ex: What? Ex: Why? Ex: Leave! Ex: Who?