Here are two sentences, I found confusing when solving grammar exercise in oxford Grammar.
a) I __do__ like that coat. It's really nice. b) I __very__ like that coat. It's really nice.
According to book (a) is the correct one because "do" is putting emphasis on the "like" verb. However if anyone can guide me why I cannot use "very"? "Very" is a adverb and coming before verb seems Ok to me or may be anyone can tell the exact reason why is it not correct because it's also seems like putting emphasis on the sentence?