It is perfectly normal idiomatic English to say that someone is on break, or on a break. A more formal phrasing would be, someone is taking a break.
Grammatically correct, maybe, but idiomatically wrong. We normally say "buy it for me."
Yes, "I appreciate you" is grammatically correct as a way to express gratitude and acknowledgment towards someone.
It is grammatically correct to say it is the time for someone and not it is the time of someone.
No, it is not grammatically correct. The correct way to say it is "your older sister."
It is grammatically correct to say: There is nothing wrong with this machine.It is not grammatically correct to say: Will it is be grammatically correct to say ....The correct way to write that or say that would be: Would it be grammatically correct to say....
Yes, it is grammatically as well as stylistically correct to speak of breaking a vicious circle. The term "vicious circle" dates from the late 1700s.
'What a drunkard you are' is a grammatically correct English sentence.
No, it is not grammatically correct to say "what a fun." It should be corrected to "What fun!" to make it grammatically accurate.
This is not acceptable in English English but it may be in American. (Americans say: meet with you. In England we say: meet you.)
No. Him and me is correct.
This sentence is grammatically correct.
It is not, but it is widely used because it conveys the general idea of the question as well as its grammatically correct version.No you should say "Where are you" the at at the end is not needed.