1.I didn't finish the work a hundred percent.

2. I didn't finished the work completely.

3. I finished the work in part.

4. I didn't finished the work at all.
--------------------
Are #1, #2 and #3 the same?#4 is not the same, right?

I cannot find the example sentences with the structure

"not ...a hundred percent" on the Internet.

There will not be examples of "not...a hundred percent" because it's not normal phrasing.

"I didn't finish the work" is all you need.

2 and 3 are OK -- meaning I did part of the work, but didn't finish.

4 will be OK if you use "finish" instead of "finished."

The sentences #1, #2, and #3 have slightly different meanings, while #4 has a different meaning altogether.

1. "I didn't finish the work a hundred percent."
This implies that you did not complete the work fully or to its entirety. It suggests that you finished some portions of the work but not everything.

2. "I didn't finished the work completely."
Here, there is a grammatical error in the sentence - it should be "I didn't finish the work completely." This sentence conveys the same meaning as #1, indicating that the work was not fully completed.

3. "I finished the work in part."
This sentence suggests that you completed only a portion or some parts of the work. It indicates that you made progress but did not finish everything.

4. "I didn't finish the work at all."
This sentence means that you did not complete any part of the work. It indicates a lack of progress or effort in finishing the task.

In summary, #1, #2, and #3 have similar meanings regarding incomplete work, while #4 expresses the absence of any completion.