We use wish to talk about a situation or an action that we sorry about.
-We use wish + Simple Past to express a desire in the present or the future. With the verb be, we usually use were for all subjects.
-We use wish + Past Perfect to express a regret about the past.
-We use wish + would +the baes form of a ver to talk about somthing we woukd like to change in the furure. We also use it to express annoyance.