1) Men make nation not the wealth.
2) Have you fulfil your duty?
Are the two sentences correct in all aspects of the English language?
1) Men make nation not the wealth. No. This sounds like you might mean Men make nations.
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1) Men make nation not the wealth.
No. This sounds like you might mean Men make nations. Men don't make wealth.
I assume you mean
eg Men, not wealth, make nations.
Don't you think that women also contribute?
2) Have you fulfilled/done your duty? The common word here is 'done'.
When we speak about duty, we are of