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had done have been done had been done was done
little white hair some white hair much white hairs a few white hairs
Not bad Probably not Not really Suppose not
much too heavy too much heavy heavy too much too heavy much
wotking work to work worked
although robots can do much dangerous and tiring work, humans are superior although humans are superior, robots can do much better in many areas of work robots will replace humans in more and more fields robots are superior to humans because they can do much work that humans can't do
had gladly paid will gladly pay will have gladly paid would have gladly paid
was she she is had she been she has been
can not have done must not have done shouldn’t have done needn’t have done
So he did So does Mary Neither do I Nor will Mary
will be doing will do are doing had done
too much , much too too much , too much much too , too much much too , much too
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