UTQG ratings (top) and tire code (bottom) on sidewall of Continental ContiProContact tire. Uniform Tire Quality Grading, commonly abbreviated as UTQG, is the term encompassing a set of standards for passenger car tires that measures a tire's treadwear, temperature resistance and traction.
Whose is a possessive pronoun. It tells you who it belongs to. It is an adjective that describes something. Who's means who is, it is a contraction,of those two words, and is a noun and a verb. Now, can we discuss its and it's - same difference, let's see someone get that one right once in a while. SUE Â· 9 years ago.
If you are unsure which to use, use who. Firstly, it is much more common than whom. Secondly, the use of whom is considered by many to be on its last legs in English. (Of course, Grammar Monster does not condone this practice, but if you don't have time to learn the difference, this advice will do for now.