are the
_indicative, subjunctive, imperative_, and _infinitive_.

_a._ A verb is in the _indicative_ mood when it makes a statement or
asks a question about something assumed as a fact. All the verbs we
have used thus far are in the present indicative.

_122._ The Persons. There are three persons, as in English. The first
person is the person speaking (_I sing_); the second person the person
spoken to (_you sing_); the third person the person spoken of (_he
sings_). Instead of using personal pronouns for the different persons in
the two numbers, singular and plural, the Latin verb uses the personal
endings (cf. Sec. 22 _a_; 29). We have already learned that -t is the
ending of the third person singular in the active voice and -nt of the
third person plural. The complete list of personal endings of the active
voice is as follows:

SINGULAR PLURAL
_1st Pers._ _I_ -m or -o: _we_ -mus
_2d Pers._ _thou_ or _you_ -s _you_ -tis
_3d Pers._ _he, she, it_ -t _they_ -nt

_123._ Most verbs form their moods and tenses after a regular plan and
are called _regular_ verbs. Verbs that depart from this plan are called
_irregular_. The verb _to be_ is irregular in Latin as in English. The
present, imperfect, and future tenses of the indicative are inflected as
follows:

PRESENT INDICATIVE
SINGULAR PLURAL
_1st Pers._ su-m, _I am_ su-mus, _we are_
_2d Pers._ e-s, _you[1] are_ es-tis, _you[1] are_
_3d Pers._ es-t, _he, she_, or _it is_ su-nt, _they are_

IMPERFECT INDICATIVE
SINGULAR PLURAL
_1st Pers._ er-a-m, _I was_ er-a:'-mus, _we were_
_2d Pers._ er-a:-s, _you were_ er-a:'-tis, _you were_
_3d Pers._ er-a-t, _he, she_, or _it was_ er-a:-nt, _they were_

FUTURE INDICATIVE
SINGULAR PLURAL
_1st Pers._ er-o:, _I shall be_ er'-i-mus, _we shall be_
_2d Pers._ er-i-s, _you will be_ er'-i-tis, _you will be_
_3d Pers._ er-i-t, _he will be_ er-u-nt, _they will be_

_a._ Be careful about vowel quantity and accent in these forms, and
consult Secs. 12.2; 14; 15.

[Footnote 1: Observe that in English _you are_, _you were_, etc. may
be either singular or plural. In Latin the singular and plural forms