Only if it's said from the person who gave them to you nerd.
tri gives you his car until he comes back from a vacation and this car will help u to do some **** , sm1 asks you whose car is this? you gona answer "I have this car" "I own this car" "I share this car". This car was given to you from tri to help you do your **** til he comes back from a vacation, who gave you any rights to say that you share this car with tri? You don't say **** until the owner speaks first, nerd. So in the mean time you will only say tri gave it to me.