don't want 和want not之间的区别

Question

don't want 和want not之间的区别What’s the difference between "don’t want"and "want not"/"don't need"and"need
not"?

Answer 1

don't want就有，want not没有；
don't need to do=need not do
You don't need to leave.=You needn't leave.
但don't need doing=don't want doing
却不等于needn't do：因为need在这里是情态动词

Answer 2

只有 don't want 和 don't need 没有 want not 和 need not 的说法