anything about it.

When a verb is used to indicate or declare or ask a simple question or
make any direct statement, it is in the _Indicative_ Mood. "The boy loves
his book." Here a direct statement is made concerning the boy. "Have you
a pin?" Here a simple question is asked which calls for an answer.

When the verb is used to express a command or entreaty it is in the
_Imperative_ Mood as, "Go away." "Give me a penny."

When the verb is used to express doubt, supposition or uncertainty or
when some future action depends upon a contingency, it is in the
subjunctive mood; as, "If I come, he shall remain."

Many grammarians include a fifth mood called the _potential_ to express
_power_, _possibility_, _liberty_, _necessity_, _will_ or _duty_. It is
formed by means of the auxiliaries _may_, _can_, _ought_ and _must_, but
in all cases it can be resolved into the indicative or subjunctive. Thus,
in "I may write if I choose," "may write" is by some classified as in the
potential mood, but in reality the phrase _I may write_ is an indicative
one while the second clause, _if I choose_, is the expression of a
condition upon which, not my liberty to write, depends, but my actual
writing.

Verbs have two participles, the present or imperfect, sometimes called
the _active_ ending in _ing_ and the past or perfect, often called the
_passive_, ending in _ed_ or _d_.

The _infinitive_ expresses the sense of the verb in a substantive form,
the participles in an adjective form; as "To rise early is healthful."