| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] occur at [det] time [prep] | 6 |
|
| 2 | [modal v] occur at [det] time [prep] | 6 |
|
| 3 | [modal v] occur at [det] time [prep] | 6 |
|
| 4 | [modal v] occur at [det] time [prep] | 6 |
|
| 5 | [modal v] occur at any time [prep] | 6 |
|
| 6 | [vb mod] occur at [det] time [prep] | 6 |
|
