Can I use this combination in the text? The sentence is " What should we do to keep further improve our business? "
Is it correct to use "Improve" rather than "Improving"
I have never seen a phrase in the format of verb+adverb+verb
I know I can simply go with "further improve" or "keep improving" But I want to know if it's correct using all three words at once. If so, is there an example of such a sentence? If not, why?