Because there are so many things that I want to have, use, eat, see... etc.I wish I were rich.
And also I want to give better things as a present to my family.
Sometimes, when I'm using a computer, there's a time that my brother or sister wants top use a computer too.I wish I could have a personal computer.
Even if we divide the time and share, there isn't enough time for three of us.
Form = I wish + subject + past tense form
> used to tell the wishes that can not come to truth
ex) I wish I could fly.