| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may from time to time appoint | 5 |
|
| 2 | may from time to time appoint | 5 |
|
| 3 | [modal v] from time to time appoint | 5 |
|
| 4 | [modal v] from time to time appoint | 5 |
|
| 5 | [vb mod] from time to time appoint | 5 |
|
