English converts a positive to a negative by placing the word not
after a verb. However, not can only be attached to certain verbs
called vector verbs. These include:
be, do, have, can, could, shall,
should, will, would, may, might, must.
If a statement contains a vector verb, we can simply attach not to the
vector verb:
| Positive statement |
Negative statement |
| I am ready. |
I am not ready. |
If a statement does not contain a vector verb, we add a vector verb, usually
do, as an auxiliary. The word not is then attached to this:
| Positive statement |
Negative statement with do |
Error: negative statement without do |
| It works. |
It does not work. |
**It works not. |
This error form, **it works not, was used hundreds of years ago. But if it
is used now, it is deliberately old-fashioned. This is not living present-day English.
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