Many employed people do not exercise on the weekend.

[mrmvp]

What is the difference between "don't plus verb", "not plus verb" and "no plus verb"?

I wrote the first two sentences.

1. Many employed people not exercise on the weekend.
2. Many employed people do not exercise on the weekend.
3. Many working people get little or no exercise either during the working day or in their free time, abd have health problems as a result.

Source.

Many working people get little or no exercise either during the working day or in their free time, and have health problems as a result. Why do many working people not get enough exercise? What can be done about this pro - IELTS Writing Samples

Nowadays employees usually get little or no exercise either while working days or in their private times and this leads to health issues. I believe that, the strict working hours prevent workers of doing enought physical

writing9.com

I have never seen "no" followed by a verb as in sentence three. My intuition tells me that it used because it collocates with the verb "get".

 

[tedmc]

Sentence 1 is wrong as it is without a verb.
"Exercise" is not a verb in Sentence 3. It is a noun modified by "no". The verb is "get".