1 在祈使句中用never do sth.
2 当never前面是情态动词/助动词时用never do sth.
3 当前面是分词,never表示相反意思同时做前面的对等句子成份时,用never doing.
4 (be) never doing 还可以做成语看待,表示”再也不会做.“
Never do things by half.
做任何事情都不能半途而废.
Never do wrong for the sake of money.
绝不要为金钱而做坏事.
I shall never do such a thing,never!
这种事我绝对不干,决不!
If I were you,I would never do that.
如果我是你,我决不做那件事.
He's alway telling,never doing.
他总是讲,从不做.
I'm never doing another plan on his again.
我再也不按照他的计划行事了.
I got out and I said：”I'm never doing this ever again.“
我离开时说过,我以后无论如何都不会这样干了.