No.
He is the man who does the work.
man - because he is one and man is one. men means many not one.
does - because with he/she/it we use does not do
"I guess you are at work" is a correct sentence.
carlos has did his work correct
Yes!
It's correct.
In this sense, "reported to work" is correct. It's just an awkward sentence. You could change he first option to "reporting for work" and that would also be correct, but the position of the preposition is incorrect.
The sentence "It lacks agreement Possible correct alternatives are He is the one of the men who does the work or He is one of the men who do the work" are not of correct grammar.
Does your brother work in a hospital? is the correct sentence.
"I guess you are at work" is a correct sentence.
No. It lacks agreement. Possible correct alternatives are: He is the one of the men who does the work, or He is one of the men who do the work.
It depends how you use it. If you use it after something it can be correct. But being in a sentence by itself isn't correct.
carlos has did his work correct
Yes
Yes.
the men have done a lot of work or the men will do a lot of work both of these work fine
The sentence The incarcerated men fled the jailis correct.
your work has definietly correct
Yes!