| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] at time | 15 |
|
| 2 | [modal v] [verb] at times | 15 |
|
| 3 | [modal v] [vb infin] at time | 15 |
|
| 4 | [vb mod] [verb] at time | 15 |
|
| 5 | may [verb] at time | 7 |
|
| 6 | may [verb] at time | 7 |
|
