   WISH+PAST SIMPLE: things we would like to be
    different in the present.
    Ex.: I wish (that) I were rich.
   WISH+PAST PERFECT:things happened in the past
    that we regret now.
    Ex.: I wish I had studied for the exam.
   IF ONLY: more emphatic:
    Ex.: If only I had lots money/ If only I had
    studied.
   WISH+WOULD: things we want to stop because
    we find them annoying.
    Ex.: I wish our neighbours would stop making
    noise.
   For preferences

   WOULD RATHER+INFINITIVE without to: no
    change of subject:
    Ex.: I’d rather not do the exam.

   WOULD RATHER+PAST TENSE: when subject
    changes
    Ex.: I’d rather you didn’t speak so loud.
   For something that has to be done now or in the
    near future
    Ex: It’s time you started studying.

   For emphasis and more criticism:
    Ex.: It’s high time/it’s about time you started
    studying.

   It’s time+infinitive: same subject:
    Ex.: It’s time to go

Unreal uses of past tenses

  • 2.
    WISH+PAST SIMPLE: things we would like to be different in the present. Ex.: I wish (that) I were rich.  WISH+PAST PERFECT:things happened in the past that we regret now. Ex.: I wish I had studied for the exam.  IF ONLY: more emphatic: Ex.: If only I had lots money/ If only I had studied.  WISH+WOULD: things we want to stop because we find them annoying. Ex.: I wish our neighbours would stop making noise.
  • 3.
    For preferences  WOULD RATHER+INFINITIVE without to: no change of subject: Ex.: I’d rather not do the exam.  WOULD RATHER+PAST TENSE: when subject changes Ex.: I’d rather you didn’t speak so loud.
  • 4.
    For something that has to be done now or in the near future Ex: It’s time you started studying.  For emphasis and more criticism: Ex.: It’s high time/it’s about time you started studying.  It’s time+infinitive: same subject: Ex.: It’s time to go