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Mood is that property of verbs which shows the manner in which
the action or state is expressed.+
+Mood+ (or +mode+) is derived from the Latin word _modus_, “manner.”
Compare the following sentences, noting the form of the verb in each:
Richard _is_ quiet.
_Is_ Richard quiet?
If Richard _were_ quiet, I might study.
Richard, _be_ quiet.
In the first and second sentences, the form _is_ is used to assert
or question a +fact+; in the third, the form _were_ expresses a
+condition+ or +supposition+ that is contrary to fact; in the fourth,
the form _be_ expresses a +command+ or +request+.
The difference in form seen in the verb in these sentences is called a
difference of +mood+.
There are three moods,–the indicative, the imperative, and the
1. +The indicative is the mood of simple assertion or interrogation,
but it is used in other constructions also.+
2. +The imperative is the mood of command or request.+
3. +The subjunctive mood is used in certain special constructions of
wish, condition, and the like.+