Do you know the difference between a verb and an adverb? What about the correct use of ‘their’, ‘there’ and ‘they’re’? Are you guilty of misspelling words and using incorrect punctuation? And what exactly is grammar, anyway? A philosopher once said, 'Half of good philosophy is good grammar.' But does it matter if we occasionally misspell a word? Or don’t use proper grammar in texts and social media posts? Language evolves over time – and always has. We often come across new words and phrases and integrate them into our speech and writing.