Subjunctive Mood

                                                 Subjunctive Mood

 expresses doubt or something contrary to fact.

Modern English speakers use indicative mood most of the time, resorting to a kind of “mixed subjunctive” that makes use of helping verbs:

If I should see him, I will tell him.

Americans are more likely to say:

If I see him, I will tell him.

The verb may can be used to express a wish:

May you have many more birthdays.
May you live long and prosper.

The verb were can also indicate the use of the subjunctive:

If I were you, I wouldn't keep driving on those tires.
If he were governor, we’d be in better fiscal shape.