Nope. It should be "He should have..."
No, the correct way to say that would be... "You should just go to work"
You should say for your convenience it is *gramatically correct-*just means correct
No, it is not correct grammatically. The correct phrasing would be "Should I take these?" or "Should I take these ones?"
The correct form should be 'neatest.'
No, it is not correct to say "Are you going to the park or no." It would be more grammatically correct to say "Are you going to the park or not?"
This sentence should be correct.
you should say, that IS very presumptuous of you
No. It should be "Consist".
The staff was is correct
No, the correct phrasing is "Did you say something?" The word "said" should be changed to "say" to make the question grammatically correct.
No, it makes complete nonsense reading "you had this......... "You should have had this yesterday!"
No, the grammatically correct way to say that would be: I wrote the book.