+The Past Perfect Tense expresses action or being as completed at some past time+.
+The Future Perfect Tense expresses action or being to be completed at some future time+.
+Number and Person of a verb are those modifications that show its agreement with the number and person of its subject+.
LESSON 91.
CONJUGATION OF THE VERB.
+DEFINITIONS+.
+Conjugation is the regular arrangement of all the forms of the verb+.
+Synopsis is the regular arrangement of the forms of one number and person in all the modes and tenses+.
+Auxiliary Verbs are those that help in the conjugation of other verbs+.
The auxiliaries are do, be, have, shall, will, may, can, and must.