A preposition is a word that tells you where or when something is in relation to something else. Examples of prepositions include words like 'after', 'before', 'on', 'under', 'inside' and 'outside'.

An authority on the English language has set us free from the tethers of what many have long regarded as a grammatical no-no. Or has it? The answer depends on how you side with a declaration from ...