HAVE. Have is in great demand.  No verb can be conjugated through all the moods and tenses without it. Have, when used as a principal verb, is doubled in some of the past tenses, and becomes an auxiliary to itself; thus, Indic. mood, pres. tense, first pers. sing.  I have; imperf. tense, I had; perf.  I have had; pluperf.  I had had; first fut.  I shall or will have; sec. fut.  I shall have had.  Subjunctive, present, if I have; imperf. if I had; perf. if I have had; pluperf. if I had had; first fut. if I shall or will have; sec. fut. if I shall have had.  Imper. mood, have thou.  Potential, present, I may, can, or must have; imperf.  I might, could, would, or should have; perf.  I may, can, or must have had; pluperf.  I might, could, would, or should have had.  Infinitive, present, to have; perf. to have had.  Participles, pres. having; perf. had; compound, having had.

BE.  In the next place I will present to you the conjugation of the irregular, neuter verb, Be, which is an auxiliary whenever it is placed before the perfect participle of another verb, but in every other situation, it is a principal verb.

TO BE.—­INDICATIVE MOOD. 
Pres.  Tense.
Sing.  I am, thou art, he, she, or it is.
Plur.  We are, ye or you are, they are.

Imperf.  Tense. Sing.  I was, thou wast, he was. Plur.  We were, ye or you were, they were.

Perf.  Tense. Sing.  I have been, thou hast been, he hath or has been. Plur.  We have been, ye or you have been, they have been.

Plup.  Tense. Sing.  I had been, thou hadst been, he had been. Plur.  We had been, ye or you had been, they had been.

First Fut.  T.
Sing, I shall or will be, thou shalt or wilt be,
                              he shall or will be.
Plur.  We shall or will be, you shall or will be,
                              they shall or will be.

Second Fut.  T. Sing.  I shall have been, thou wilt have been, he will have been. Plur.  We shall have been, you will have been, they will have been.

SUBJUNCTIVE MOOD. 
Pres.  Tense.
Sing.  If I be, if thou be, if he be.
Plur.  If we be, if ye or you be, if they be.

Imperf.  Tense. Sing.  If I were, if thou wert, if he were. Plur.  If we were, if ye or you were, if they were.

The neuter verb to be, and all passive verbs, have two forms in the imperfect tense of this mood, as well as in the present; therefore, the following rule may serve to direct you in the proper use of each form.  When the sentence implies doubt, supposition, &c. and the neuter verb be, or the passive verb, is used with a reference to present or future time, and is either followed or preceded by another