None – English editing

Some language purists maintain that none can take a singular verb, never a plural one:none of them is coming tonight rather than none of them are coming tonight. There is little historical or grammatical justification for this view. None comes from Old English nan meaning ‘not one’ and has been used for around a thousand years with both a singular and a plural verb, depending on the context and the emphasis needed.
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Onto – English editing.

The preposition onto meaning ‘to a position on the surface of’, as in they fell off their stools onto the rough stone floor , has been widely written as one word(instead of on to)since the early 18th century. Some people, however , still do not wholly accept it as part of the standard English language. (unlike into, for example). In US English, onto is more or less the standard form and this is likely to become the case in British English before long.
Because of the increasing tendancy to write the two words as one,it is important to remember never to write onto as one wordwhen it means ‘onwards and towards’, as in let’s go on to the next point.
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