Incorrect grammar is a handicap for a speaker because of the way it makes others view him or her. Incorrect grammar is often associated with lower-class people, so using it may prejudice the listeners against the speaker. Also, incorrect grammar can be distracting if it makes it difficult to understand what the speaker means.
No, the example above in incorrect grammar. A correct example would be: "Have you taken a nap?"
Too perfect is incorrect because there are no degrees of perfection.
Every language that exists uses grammar. A language can't exist without grammar; everything would be shambles and we wouldn't be able to communicate with each other. Grammar lets the speaker show emotion, ask questions; in fact, grammar lets us say everything that we say today.
"The crowd cheered the winners, her and me." It is incorrect in this context to say "she and I" and it is always incorrect to say "her and I." You can use "her and me" anywhere that you would use "us," and you can use "she and I" anywhere that you would use "we."
A descriptive grammar tries to describe the actual structures and forms of a language. A prescriptive grammar is essentially a list of linguistic do's and don'ts.
Handicap access
If your grammar was wrong, you would receive a lower grade on class work. You would not be considered for certain jobs. You would be turned down by certain schools. For some jobs, it would not matter.
The grammar in the question is correct.
This question is incorrect grammar.
incorrect grammar
Of course. Pirates don't worry about such things and they make their own rules.
syntaxtically incorrect
It's not incorrect, but could probably be said more succinctly.
He was simply a man with a handicap. Refering to him as a monster would be politically incorrect.
No, "I remember nothing" is not incorrect grammar. It is a complete sentence where the subject ("I") and the verb ("remember") are properly used.
Yes. It can be set by the user to check grammar in addition to spelling.
That sentence is grammatically correct.