gaining sovereignty

Hi,

No, it's too mixed up. Say

China has never given up on and will never give up on gaining sovereignty over Taiwan.

This is correct grammar now. However, I think China would say that it already has sovereignty over Taiwan.
Best wishes, Clive

How about "We have never and will never refuse service to our customers"?

Hi,
For some reason, this doesn't sound awkward to me.
It's the position opf the past participle after 'will never' in the first example that is the problem in that case. ie will never given up
Clive

China has never and will never give up on gaining sovereignty over Taiwan.

Just to make sure I get what you said. Is this OK now?

Hi,
That example doesn't sound so good to me. English is fun, isn't it?

That's not my original correction.
Clive

Could you give me an idea why it is not right? Could you tell me what you feel please.?

What if you converted it: China never has and never will...

Hi,
My instinct is that it's because the verb is followed by one or more prepositions.

I have never and will never cook dinner doesn't sound terrible to me.

Clive

I wish there was a rule... Where is our rule wizard? CJ, any idea?

You mistake my role on this forum!
One clause requires the past participle; the next, the bare infinitive. All I can say