Are sentence fragments ever acceptable?
Most grammar gods and goddesses agree that the occasional fragment is okay if it serves a purpose. In creative writing, such as narrative or descriptive essays, fragments can be deployed on purpose...
Can there be a one-word sentence?
Yep.Hey, look what we did. "Yes." is an acceptable one-word sentence, but it's not the only one. Think of things like "Run!"—there's a verb, for sure, but there's also an implied subject: you. Sa...