Chapter 165Allen and Greenough's Latin GrammarDickinson CollegeChristopher Francese
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Every form of the finite verb is made up of two parts:
The STEM (see §
24
). This is either the root or a modification or development of it.
The ENDING, consisting of—
the Signs of Mood and Tense (see §§
168
, 169).
the Personal Ending (see §
163
).
Thus in the verb
vocā-bā-s
,
you were calling
, the root is VOC, modified into the verb-stem
vocā-
, which by the addition of the ending
-bās
becomes the imperfect tense
vocābās
;
and this ending consists of the tense-sign
bā-
and the personal ending (
-s
) of the second person singular.