The imperfect subjuntive has two forms. For example: Ojalá viniera. Ojalá viniese. I think both has the same meaning. However, is there any subtle difference?
There are two ways to express simple past time actions and conditions in Spanish. One is the preterite, Comí tacos. (I ate tacos.) Besé a una chica. (I kissed a girl.) and the other is the ...