Most of the auxiliary verbs are defective in conjugation; that is, they are used only in some of the moods and tenses; and when unconnected with principal verbs, they are conjugated in the following manner:
MAY.
| Pres. Tense | Sing. | I may, thou mayst, he may. |
| Plur. | We may, ye or you may, they may. |
| Imperf. Tense. | Sing. | I might, thou mightst, he might. |
| Plur. | We might, ye or you might, they might. |
CAN.
| Pres. Tense. | Sing. | I can, thou canst, he can. |
| Plur. | We can, ye or you can, they can. |
| Imperf. Tense. | Sing. | I could, thou couldst, he could. |
| Plur. | We could, ye or you could, they could. |
WILL.
| Pres. Tense. | Sing. | I will, thou wilt, he will. |
| Plur. | We will, ye or you will, they will. |
| Imperf. Tense. | Sing. | I would, thou wouldst, he would. |
| Plur. | We would, ye or you would, they would. |
SHALL.
| Pres. Tense. | Sing. | I shall, thou shalt, he shall. |
| Plur. | We shall, ye or you shall, they shall. |
| Imperf. Tense. | Sing. | I should, thou shouldst, he should. |
| Plur. | We should, ye or you should, they should. |