WISH

Wish is used to express a desire for something that is unreal. As a matter of fact, something that is totally the opposite to reality.
E.g.:
I wish I had a million dollars (the reality is that I don´t have money)
When we wish in the present about the present we use a past tense verb after wish.
E. g. :
Ana wishes she were a millionaire. Reality: she is not a millionaire.
Elio wishes that Anais would kiss him. Reality: Anais will not kiss him.
Josue wishes his friends didn´t bother him so much. Reality: his friends bother him.


When we wish in the present (now) about the past,
we use the past perfect (Had+past participle).

E.G.:
Cristina wishes yesterday had been better. Reality: yesterday was a bad day.
Franz wishes he had had money yesterday to buy that present for her mother.
Reality: Franz didn´t have money yesterday and didn´t buy the present.

Stephany wishes she had studied for the exam last Friday.
Reality: she didn´t study and failed the exam.
MSR/mbs