Grammar and Usage
Grammar and Usage English and each language have their own systematic ways through which words and sentences are assembled to convey meanings. This called grammar. But there is a usage which is a much more slippery concept than grammar. It has to do with habitual or customary practices in spoken or written language. There are difference between English grammar and usage. Grammar describes the way in which a language puts together the smallest units of meaning to make words (morphology), and the way it puts words together to make sentences (syntax). Usage is a less tightly defined concept, describing the way in which members of a language community use language, within the grammatical framework, to achieve their communicative purpose, particularly when several options are available. If the mistake contravenes a generalizable rule for all members of that word class, then it is a grammar mistake. Otherwise it is a usage mistake. For example: