No
The sentence "You should of known better." derives from "You should've known better."; "should of" sounds about like "should've". Of course "should've" is a contraction for "should have" so the correct sentence is either "You should have known better." or (if speaking informally and using contractions) "You should've known better." Writing the sentence as "You should of known better." instead of "You should'veknown better." is INCORRECT.
The sentence "I should not have eaten that candy" has better grammar compared to "you should of known better." The correct form is "you should have known better," using the modal verb "have" followed by the past participle "known."
Yes, that is correct. But there should not be an article("a") before "correct".
It is not correct. The correct usage is: waiting to hear from you.
The correct grammar is "your mother and he." "He" is a subject pronoun that should be used when referring to the subject of the sentence (your mother).
It would be better to add "have." The concert to which you have just listened was the same one you once heard as a child.
The sentence "I should not have eaten that candy" has better grammar compared to "you should of known better." The correct form is "you should have known better," using the modal verb "have" followed by the past participle "known."
Yes, that is correct. But there should not be an article("a") before "correct".
"It would not have fitted" is the correct grammar.
It is not correct. The correct usage is: waiting to hear from you.
The correct grammar is "your mother and he." "He" is a subject pronoun that should be used when referring to the subject of the sentence (your mother).
It would be better to add "have." The concert to which you have just listened was the same one you once heard as a child.
No. The correct form is "got", without the "had". Example, I got what I wanted.
The sentence All credits go to him, is not correct grammar, and it should be corrected to All credit goes to him.
The correct grammar for the sentence is: "It's going to be good for me tonight." In this corrected sentence, "It's" is the contraction for "It is," and the word "good" should be used instead of "a good."
No, it should be little more only.
Perhaps you should work on your grammar a little better, seeing as I don't understand your question.
The grammar is correct but there should be no capitals in the middle of the sentence. Only the first letter of a sentence or proper nouns and the pronoun 'I' are capitalized. There are no proper nouns in the sentence: "I water the plant." is correct.