No, the correct phrase in American English would be "There is more than one mirror."
Although technically referring to a plural noun, in most contexts "more" is treated as singular which then requires a singular verb. In the question's phrase, "one" is modifying "mirrors"; since the adjective is singular, the noun would be singular as well.
No, "you is" is not grammatically correct. The correct form is "you are" when referring to more than one person or "you are" when referring to one person.
Both sentences are grammatically correct, but the second one is more concise and direct in conveying the same message.
No, the sentence "Is Us teens need more sleep" is not grammatically correct. It would be more correct to say "Do US teens need more sleep?" to form a grammatically correct question.
No, the sentence is not grammatically correct. It should be: "The average man spends more than $75 per week on clothing for a family of four."
Yes, the sentence is grammatically correct. It compares the level of experience of the two people, emphasizing that she is a more experienced world traveler than the other person.
Yes, it is correct to say "I would be more than happy to." This phrase conveys enthusiasm and eagerness to help or participate in something.
Yes, but it would not be grammatically correct.
It's grammatically correct but slightly peculiar. It would be more normal to say something like "I am completing the work now" or "I will complete the work now" rather than "I complete the work now".
The word grievances is the plural form of grievance. Use grievances if you have more than one grievance.
No. It should be: A horse's teeth take up more space than it's brain.
Different 'from' is grammatically correct.Different 'from' is correct.
It is unknown what you are referring to. Are you asking which statement is grammatically correct?John got shot ORJohn was shot?Think about it. Was is a verb and the sentence 'John was shot' is much more grammatically correct than 'John got shot' which sounds informal and can have multiple meanings.